Wobble
#31
Guest
Posts: n/a
Re: Wobble
Tommy, Caster angle isn't super critical but 2.5 degrees is clearly way
under what it needs. I would try four turns of your control arms
(lengthening the lower arms) and see how it feels. Just do the same number
of turns on each arm and it'll work fine. :)
Jerry
--
Jerry Bransford
To email, remove 'me' from my email address
N6TAY, PP-ASEL
See the Geezer Jeep at
http://members.***.net/jerrypb/
"twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
news:aIhAc.1298$Q77.901@newssvr23.news.prodigy.com ...
> Right. However the last tech wouldn't go past 2.5deg. saying that the
> DShaft has priority. I'm still not happy with the steering. Can I
> ballpark the caster measurement? I know that the last alignment gave me
> roughly 2.5 deg., so to get to 5.5 deg. I'll have to shorten the RE
> upper control arms, but I'm not sure how far. I don't have the equipt.
> to measure caster, obviously, but another $80 alignment isn't that
> appealing either. Since I know where it is now (2.5), can I shorten each
> arm, equally, to acheive a better caster angle and how many turns would
> I attempt?
>
> Jerry Bransford wrote:
>
> > 7 degrees is the factory specified Caster angle for a Wrangler. If you
try
> > to keep 7 degrees with 4.5" of lift, you do get front driveshaft
vibration
> > due to excessive pinion angle. But 5.5 to 6 degrees is entirely
appropriate
> > and works well. It's the standard recommended Caster angle when you get
to
> > 4-5" of lift which won't cause any front driveshaft problems/vibrations
but
> > it does give you enough Caster angle to give good steering qualities.
My
> > own TJ is set to nearly six degrees and that worked very well with my
5.5"
> > of suspension lift. It's when you try to get too close to the factory 7
> > degree angle after installing a tall lift when the front pinion angle
> > becomes excessive for the front driveshaft and u-joint.
> >
> > Jerry
> > --
> > Jerry Bransford
> > To email, remove 'me' from my email address
> > N6TAY, PP-ASEL
> > See the Geezer Jeep at
> > http://members.***.net/jerrypb/
> >
> > "twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
> > news:p_9Ac.1264$Q77.115@newssvr23.news.prodigy.com ...
> >
> >>How do you get -5.5 deg. without putting your front propeller shaft out
> >>of line? Mine is at -2.5 on a 4.5" lift.
> >>
> >>Jerry Bransford wrote:
> >>
> >>
> >>>Caster angle shouldn't even be below 5.5 degrees, let alone zero. For
a
> >
> > 2"
> >
> >>>lift, Caster should actually be between 6 and 7 degrees of Caster
angle.
> >>>Are you thinking toe-in?
> >>>
> >>>Jerry
> >>
> >>
> >>--
> >>________________________________________________ ___________
> >>tw
> >>
> >>03 TJ Rubicon - Rubicon Express 4.5"
> >>01 XJ Sport
> >>
> >>There is a very fine line between "hobby" and "mental illness."
> >>-- Dave Barry
> >>
> >>Pronunciation: 'jEp
> >>Function: noun
> >>Date: 1940
> >>
> >>Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> >>A small general-purpose motor vehicle with 80-inch wheelbase,
> >>1/4-ton capacity, and four-wheel drive used by the U.S. army in
> >>World War II.
> >>
> >>(Please remove the OBVIOUS to reply by email)
> >>________________________________________________ ___________
> >>
> >
> >
> >
>
> --
> __________________________________________________ _________
> tw
>
> 03 TJ Rubicon - Rubicon Express 4.5"
> 01 XJ Sport
>
> There is a very fine line between "hobby" and "mental illness."
> -- Dave Barry
>
> Pronunciation: 'jEp
> Function: noun
> Date: 1940
>
> Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> A small general-purpose motor vehicle with 80-inch wheelbase,
> 1/4-ton capacity, and four-wheel drive used by the U.S. army in
> World War II.
>
> (Please remove the OBVIOUS to reply by email)
> __________________________________________________ _________
>
under what it needs. I would try four turns of your control arms
(lengthening the lower arms) and see how it feels. Just do the same number
of turns on each arm and it'll work fine. :)
Jerry
--
Jerry Bransford
To email, remove 'me' from my email address
N6TAY, PP-ASEL
See the Geezer Jeep at
http://members.***.net/jerrypb/
"twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
news:aIhAc.1298$Q77.901@newssvr23.news.prodigy.com ...
> Right. However the last tech wouldn't go past 2.5deg. saying that the
> DShaft has priority. I'm still not happy with the steering. Can I
> ballpark the caster measurement? I know that the last alignment gave me
> roughly 2.5 deg., so to get to 5.5 deg. I'll have to shorten the RE
> upper control arms, but I'm not sure how far. I don't have the equipt.
> to measure caster, obviously, but another $80 alignment isn't that
> appealing either. Since I know where it is now (2.5), can I shorten each
> arm, equally, to acheive a better caster angle and how many turns would
> I attempt?
>
> Jerry Bransford wrote:
>
> > 7 degrees is the factory specified Caster angle for a Wrangler. If you
try
> > to keep 7 degrees with 4.5" of lift, you do get front driveshaft
vibration
> > due to excessive pinion angle. But 5.5 to 6 degrees is entirely
appropriate
> > and works well. It's the standard recommended Caster angle when you get
to
> > 4-5" of lift which won't cause any front driveshaft problems/vibrations
but
> > it does give you enough Caster angle to give good steering qualities.
My
> > own TJ is set to nearly six degrees and that worked very well with my
5.5"
> > of suspension lift. It's when you try to get too close to the factory 7
> > degree angle after installing a tall lift when the front pinion angle
> > becomes excessive for the front driveshaft and u-joint.
> >
> > Jerry
> > --
> > Jerry Bransford
> > To email, remove 'me' from my email address
> > N6TAY, PP-ASEL
> > See the Geezer Jeep at
> > http://members.***.net/jerrypb/
> >
> > "twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
> > news:p_9Ac.1264$Q77.115@newssvr23.news.prodigy.com ...
> >
> >>How do you get -5.5 deg. without putting your front propeller shaft out
> >>of line? Mine is at -2.5 on a 4.5" lift.
> >>
> >>Jerry Bransford wrote:
> >>
> >>
> >>>Caster angle shouldn't even be below 5.5 degrees, let alone zero. For
a
> >
> > 2"
> >
> >>>lift, Caster should actually be between 6 and 7 degrees of Caster
angle.
> >>>Are you thinking toe-in?
> >>>
> >>>Jerry
> >>
> >>
> >>--
> >>________________________________________________ ___________
> >>tw
> >>
> >>03 TJ Rubicon - Rubicon Express 4.5"
> >>01 XJ Sport
> >>
> >>There is a very fine line between "hobby" and "mental illness."
> >>-- Dave Barry
> >>
> >>Pronunciation: 'jEp
> >>Function: noun
> >>Date: 1940
> >>
> >>Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> >>A small general-purpose motor vehicle with 80-inch wheelbase,
> >>1/4-ton capacity, and four-wheel drive used by the U.S. army in
> >>World War II.
> >>
> >>(Please remove the OBVIOUS to reply by email)
> >>________________________________________________ ___________
> >>
> >
> >
> >
>
> --
> __________________________________________________ _________
> tw
>
> 03 TJ Rubicon - Rubicon Express 4.5"
> 01 XJ Sport
>
> There is a very fine line between "hobby" and "mental illness."
> -- Dave Barry
>
> Pronunciation: 'jEp
> Function: noun
> Date: 1940
>
> Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> A small general-purpose motor vehicle with 80-inch wheelbase,
> 1/4-ton capacity, and four-wheel drive used by the U.S. army in
> World War II.
>
> (Please remove the OBVIOUS to reply by email)
> __________________________________________________ _________
>
#32
Guest
Posts: n/a
Re: Wobble
Tommy, Caster angle isn't super critical but 2.5 degrees is clearly way
under what it needs. I would try four turns of your control arms
(lengthening the lower arms) and see how it feels. Just do the same number
of turns on each arm and it'll work fine. :)
Jerry
--
Jerry Bransford
To email, remove 'me' from my email address
N6TAY, PP-ASEL
See the Geezer Jeep at
http://members.***.net/jerrypb/
"twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
news:aIhAc.1298$Q77.901@newssvr23.news.prodigy.com ...
> Right. However the last tech wouldn't go past 2.5deg. saying that the
> DShaft has priority. I'm still not happy with the steering. Can I
> ballpark the caster measurement? I know that the last alignment gave me
> roughly 2.5 deg., so to get to 5.5 deg. I'll have to shorten the RE
> upper control arms, but I'm not sure how far. I don't have the equipt.
> to measure caster, obviously, but another $80 alignment isn't that
> appealing either. Since I know where it is now (2.5), can I shorten each
> arm, equally, to acheive a better caster angle and how many turns would
> I attempt?
>
> Jerry Bransford wrote:
>
> > 7 degrees is the factory specified Caster angle for a Wrangler. If you
try
> > to keep 7 degrees with 4.5" of lift, you do get front driveshaft
vibration
> > due to excessive pinion angle. But 5.5 to 6 degrees is entirely
appropriate
> > and works well. It's the standard recommended Caster angle when you get
to
> > 4-5" of lift which won't cause any front driveshaft problems/vibrations
but
> > it does give you enough Caster angle to give good steering qualities.
My
> > own TJ is set to nearly six degrees and that worked very well with my
5.5"
> > of suspension lift. It's when you try to get too close to the factory 7
> > degree angle after installing a tall lift when the front pinion angle
> > becomes excessive for the front driveshaft and u-joint.
> >
> > Jerry
> > --
> > Jerry Bransford
> > To email, remove 'me' from my email address
> > N6TAY, PP-ASEL
> > See the Geezer Jeep at
> > http://members.***.net/jerrypb/
> >
> > "twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
> > news:p_9Ac.1264$Q77.115@newssvr23.news.prodigy.com ...
> >
> >>How do you get -5.5 deg. without putting your front propeller shaft out
> >>of line? Mine is at -2.5 on a 4.5" lift.
> >>
> >>Jerry Bransford wrote:
> >>
> >>
> >>>Caster angle shouldn't even be below 5.5 degrees, let alone zero. For
a
> >
> > 2"
> >
> >>>lift, Caster should actually be between 6 and 7 degrees of Caster
angle.
> >>>Are you thinking toe-in?
> >>>
> >>>Jerry
> >>
> >>
> >>--
> >>________________________________________________ ___________
> >>tw
> >>
> >>03 TJ Rubicon - Rubicon Express 4.5"
> >>01 XJ Sport
> >>
> >>There is a very fine line between "hobby" and "mental illness."
> >>-- Dave Barry
> >>
> >>Pronunciation: 'jEp
> >>Function: noun
> >>Date: 1940
> >>
> >>Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> >>A small general-purpose motor vehicle with 80-inch wheelbase,
> >>1/4-ton capacity, and four-wheel drive used by the U.S. army in
> >>World War II.
> >>
> >>(Please remove the OBVIOUS to reply by email)
> >>________________________________________________ ___________
> >>
> >
> >
> >
>
> --
> __________________________________________________ _________
> tw
>
> 03 TJ Rubicon - Rubicon Express 4.5"
> 01 XJ Sport
>
> There is a very fine line between "hobby" and "mental illness."
> -- Dave Barry
>
> Pronunciation: 'jEp
> Function: noun
> Date: 1940
>
> Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> A small general-purpose motor vehicle with 80-inch wheelbase,
> 1/4-ton capacity, and four-wheel drive used by the U.S. army in
> World War II.
>
> (Please remove the OBVIOUS to reply by email)
> __________________________________________________ _________
>
under what it needs. I would try four turns of your control arms
(lengthening the lower arms) and see how it feels. Just do the same number
of turns on each arm and it'll work fine. :)
Jerry
--
Jerry Bransford
To email, remove 'me' from my email address
N6TAY, PP-ASEL
See the Geezer Jeep at
http://members.***.net/jerrypb/
"twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
news:aIhAc.1298$Q77.901@newssvr23.news.prodigy.com ...
> Right. However the last tech wouldn't go past 2.5deg. saying that the
> DShaft has priority. I'm still not happy with the steering. Can I
> ballpark the caster measurement? I know that the last alignment gave me
> roughly 2.5 deg., so to get to 5.5 deg. I'll have to shorten the RE
> upper control arms, but I'm not sure how far. I don't have the equipt.
> to measure caster, obviously, but another $80 alignment isn't that
> appealing either. Since I know where it is now (2.5), can I shorten each
> arm, equally, to acheive a better caster angle and how many turns would
> I attempt?
>
> Jerry Bransford wrote:
>
> > 7 degrees is the factory specified Caster angle for a Wrangler. If you
try
> > to keep 7 degrees with 4.5" of lift, you do get front driveshaft
vibration
> > due to excessive pinion angle. But 5.5 to 6 degrees is entirely
appropriate
> > and works well. It's the standard recommended Caster angle when you get
to
> > 4-5" of lift which won't cause any front driveshaft problems/vibrations
but
> > it does give you enough Caster angle to give good steering qualities.
My
> > own TJ is set to nearly six degrees and that worked very well with my
5.5"
> > of suspension lift. It's when you try to get too close to the factory 7
> > degree angle after installing a tall lift when the front pinion angle
> > becomes excessive for the front driveshaft and u-joint.
> >
> > Jerry
> > --
> > Jerry Bransford
> > To email, remove 'me' from my email address
> > N6TAY, PP-ASEL
> > See the Geezer Jeep at
> > http://members.***.net/jerrypb/
> >
> > "twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
> > news:p_9Ac.1264$Q77.115@newssvr23.news.prodigy.com ...
> >
> >>How do you get -5.5 deg. without putting your front propeller shaft out
> >>of line? Mine is at -2.5 on a 4.5" lift.
> >>
> >>Jerry Bransford wrote:
> >>
> >>
> >>>Caster angle shouldn't even be below 5.5 degrees, let alone zero. For
a
> >
> > 2"
> >
> >>>lift, Caster should actually be between 6 and 7 degrees of Caster
angle.
> >>>Are you thinking toe-in?
> >>>
> >>>Jerry
> >>
> >>
> >>--
> >>________________________________________________ ___________
> >>tw
> >>
> >>03 TJ Rubicon - Rubicon Express 4.5"
> >>01 XJ Sport
> >>
> >>There is a very fine line between "hobby" and "mental illness."
> >>-- Dave Barry
> >>
> >>Pronunciation: 'jEp
> >>Function: noun
> >>Date: 1940
> >>
> >>Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> >>A small general-purpose motor vehicle with 80-inch wheelbase,
> >>1/4-ton capacity, and four-wheel drive used by the U.S. army in
> >>World War II.
> >>
> >>(Please remove the OBVIOUS to reply by email)
> >>________________________________________________ ___________
> >>
> >
> >
> >
>
> --
> __________________________________________________ _________
> tw
>
> 03 TJ Rubicon - Rubicon Express 4.5"
> 01 XJ Sport
>
> There is a very fine line between "hobby" and "mental illness."
> -- Dave Barry
>
> Pronunciation: 'jEp
> Function: noun
> Date: 1940
>
> Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> A small general-purpose motor vehicle with 80-inch wheelbase,
> 1/4-ton capacity, and four-wheel drive used by the U.S. army in
> World War II.
>
> (Please remove the OBVIOUS to reply by email)
> __________________________________________________ _________
>
#33
Guest
Posts: n/a
Re: Wobble
Tommy, Caster angle isn't super critical but 2.5 degrees is clearly way
under what it needs. I would try four turns of your control arms
(lengthening the lower arms) and see how it feels. Just do the same number
of turns on each arm and it'll work fine. :)
Jerry
--
Jerry Bransford
To email, remove 'me' from my email address
N6TAY, PP-ASEL
See the Geezer Jeep at
http://members.***.net/jerrypb/
"twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
news:aIhAc.1298$Q77.901@newssvr23.news.prodigy.com ...
> Right. However the last tech wouldn't go past 2.5deg. saying that the
> DShaft has priority. I'm still not happy with the steering. Can I
> ballpark the caster measurement? I know that the last alignment gave me
> roughly 2.5 deg., so to get to 5.5 deg. I'll have to shorten the RE
> upper control arms, but I'm not sure how far. I don't have the equipt.
> to measure caster, obviously, but another $80 alignment isn't that
> appealing either. Since I know where it is now (2.5), can I shorten each
> arm, equally, to acheive a better caster angle and how many turns would
> I attempt?
>
> Jerry Bransford wrote:
>
> > 7 degrees is the factory specified Caster angle for a Wrangler. If you
try
> > to keep 7 degrees with 4.5" of lift, you do get front driveshaft
vibration
> > due to excessive pinion angle. But 5.5 to 6 degrees is entirely
appropriate
> > and works well. It's the standard recommended Caster angle when you get
to
> > 4-5" of lift which won't cause any front driveshaft problems/vibrations
but
> > it does give you enough Caster angle to give good steering qualities.
My
> > own TJ is set to nearly six degrees and that worked very well with my
5.5"
> > of suspension lift. It's when you try to get too close to the factory 7
> > degree angle after installing a tall lift when the front pinion angle
> > becomes excessive for the front driveshaft and u-joint.
> >
> > Jerry
> > --
> > Jerry Bransford
> > To email, remove 'me' from my email address
> > N6TAY, PP-ASEL
> > See the Geezer Jeep at
> > http://members.***.net/jerrypb/
> >
> > "twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
> > news:p_9Ac.1264$Q77.115@newssvr23.news.prodigy.com ...
> >
> >>How do you get -5.5 deg. without putting your front propeller shaft out
> >>of line? Mine is at -2.5 on a 4.5" lift.
> >>
> >>Jerry Bransford wrote:
> >>
> >>
> >>>Caster angle shouldn't even be below 5.5 degrees, let alone zero. For
a
> >
> > 2"
> >
> >>>lift, Caster should actually be between 6 and 7 degrees of Caster
angle.
> >>>Are you thinking toe-in?
> >>>
> >>>Jerry
> >>
> >>
> >>--
> >>________________________________________________ ___________
> >>tw
> >>
> >>03 TJ Rubicon - Rubicon Express 4.5"
> >>01 XJ Sport
> >>
> >>There is a very fine line between "hobby" and "mental illness."
> >>-- Dave Barry
> >>
> >>Pronunciation: 'jEp
> >>Function: noun
> >>Date: 1940
> >>
> >>Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> >>A small general-purpose motor vehicle with 80-inch wheelbase,
> >>1/4-ton capacity, and four-wheel drive used by the U.S. army in
> >>World War II.
> >>
> >>(Please remove the OBVIOUS to reply by email)
> >>________________________________________________ ___________
> >>
> >
> >
> >
>
> --
> __________________________________________________ _________
> tw
>
> 03 TJ Rubicon - Rubicon Express 4.5"
> 01 XJ Sport
>
> There is a very fine line between "hobby" and "mental illness."
> -- Dave Barry
>
> Pronunciation: 'jEp
> Function: noun
> Date: 1940
>
> Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> A small general-purpose motor vehicle with 80-inch wheelbase,
> 1/4-ton capacity, and four-wheel drive used by the U.S. army in
> World War II.
>
> (Please remove the OBVIOUS to reply by email)
> __________________________________________________ _________
>
under what it needs. I would try four turns of your control arms
(lengthening the lower arms) and see how it feels. Just do the same number
of turns on each arm and it'll work fine. :)
Jerry
--
Jerry Bransford
To email, remove 'me' from my email address
N6TAY, PP-ASEL
See the Geezer Jeep at
http://members.***.net/jerrypb/
"twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
news:aIhAc.1298$Q77.901@newssvr23.news.prodigy.com ...
> Right. However the last tech wouldn't go past 2.5deg. saying that the
> DShaft has priority. I'm still not happy with the steering. Can I
> ballpark the caster measurement? I know that the last alignment gave me
> roughly 2.5 deg., so to get to 5.5 deg. I'll have to shorten the RE
> upper control arms, but I'm not sure how far. I don't have the equipt.
> to measure caster, obviously, but another $80 alignment isn't that
> appealing either. Since I know where it is now (2.5), can I shorten each
> arm, equally, to acheive a better caster angle and how many turns would
> I attempt?
>
> Jerry Bransford wrote:
>
> > 7 degrees is the factory specified Caster angle for a Wrangler. If you
try
> > to keep 7 degrees with 4.5" of lift, you do get front driveshaft
vibration
> > due to excessive pinion angle. But 5.5 to 6 degrees is entirely
appropriate
> > and works well. It's the standard recommended Caster angle when you get
to
> > 4-5" of lift which won't cause any front driveshaft problems/vibrations
but
> > it does give you enough Caster angle to give good steering qualities.
My
> > own TJ is set to nearly six degrees and that worked very well with my
5.5"
> > of suspension lift. It's when you try to get too close to the factory 7
> > degree angle after installing a tall lift when the front pinion angle
> > becomes excessive for the front driveshaft and u-joint.
> >
> > Jerry
> > --
> > Jerry Bransford
> > To email, remove 'me' from my email address
> > N6TAY, PP-ASEL
> > See the Geezer Jeep at
> > http://members.***.net/jerrypb/
> >
> > "twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
> > news:p_9Ac.1264$Q77.115@newssvr23.news.prodigy.com ...
> >
> >>How do you get -5.5 deg. without putting your front propeller shaft out
> >>of line? Mine is at -2.5 on a 4.5" lift.
> >>
> >>Jerry Bransford wrote:
> >>
> >>
> >>>Caster angle shouldn't even be below 5.5 degrees, let alone zero. For
a
> >
> > 2"
> >
> >>>lift, Caster should actually be between 6 and 7 degrees of Caster
angle.
> >>>Are you thinking toe-in?
> >>>
> >>>Jerry
> >>
> >>
> >>--
> >>________________________________________________ ___________
> >>tw
> >>
> >>03 TJ Rubicon - Rubicon Express 4.5"
> >>01 XJ Sport
> >>
> >>There is a very fine line between "hobby" and "mental illness."
> >>-- Dave Barry
> >>
> >>Pronunciation: 'jEp
> >>Function: noun
> >>Date: 1940
> >>
> >>Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> >>A small general-purpose motor vehicle with 80-inch wheelbase,
> >>1/4-ton capacity, and four-wheel drive used by the U.S. army in
> >>World War II.
> >>
> >>(Please remove the OBVIOUS to reply by email)
> >>________________________________________________ ___________
> >>
> >
> >
> >
>
> --
> __________________________________________________ _________
> tw
>
> 03 TJ Rubicon - Rubicon Express 4.5"
> 01 XJ Sport
>
> There is a very fine line between "hobby" and "mental illness."
> -- Dave Barry
>
> Pronunciation: 'jEp
> Function: noun
> Date: 1940
>
> Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> A small general-purpose motor vehicle with 80-inch wheelbase,
> 1/4-ton capacity, and four-wheel drive used by the U.S. army in
> World War II.
>
> (Please remove the OBVIOUS to reply by email)
> __________________________________________________ _________
>
#34
Guest
Posts: n/a
Re: Wobble (whoops)
Tommy, of course you caught this but instead of lengthening your
non-existent adjustable lower arms, shorten your upper arms by the same
number of turns. I was at about 3.5 degrees before and 3 turns brought my
caster up to where I needed it.
And the tech was correct that the driveshaft has priority but he was
clueless on limiting the Caster angle to only 2.5 degrees since the Caster
can usually be increased well beyond that, to around 5.5 to 6 degrees,
before the pinion angle becomes excessive for a 4 or 4.5" lift.
Jerry
--
Jerry Bransford
To email, remove 'me' from my email address
N6TAY, PP-ASEL
See the Geezer Jeep at
http://members.***.net/jerrypb/
"Jerry Bransford" <jerrypb@mecox.net> wrote in message
news:kriAc.9246$ey.3907@fed1read06...
> Tommy, Caster angle isn't super critical but 2.5 degrees is clearly way
> under what it needs. I would try four turns of your control arms
> (lengthening the lower arms) and see how it feels. Just do the same
number
> of turns on each arm and it'll work fine. :)
>
> Jerry
> --
> Jerry Bransford
> To email, remove 'me' from my email address
> N6TAY, PP-ASEL
> See the Geezer Jeep at
> http://members.***.net/jerrypb/
>
> "twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
> news:aIhAc.1298$Q77.901@newssvr23.news.prodigy.com ...
> > Right. However the last tech wouldn't go past 2.5deg. saying that the
> > DShaft has priority. I'm still not happy with the steering. Can I
> > ballpark the caster measurement? I know that the last alignment gave me
> > roughly 2.5 deg., so to get to 5.5 deg. I'll have to shorten the RE
> > upper control arms, but I'm not sure how far. I don't have the equipt.
> > to measure caster, obviously, but another $80 alignment isn't that
> > appealing either. Since I know where it is now (2.5), can I shorten each
> > arm, equally, to acheive a better caster angle and how many turns would
> > I attempt?
> >
> > Jerry Bransford wrote:
> >
> > > 7 degrees is the factory specified Caster angle for a Wrangler. If
you
> try
> > > to keep 7 degrees with 4.5" of lift, you do get front driveshaft
> vibration
> > > due to excessive pinion angle. But 5.5 to 6 degrees is entirely
> appropriate
> > > and works well. It's the standard recommended Caster angle when you
get
> to
> > > 4-5" of lift which won't cause any front driveshaft
problems/vibrations
> but
> > > it does give you enough Caster angle to give good steering qualities.
> My
> > > own TJ is set to nearly six degrees and that worked very well with my
> 5.5"
> > > of suspension lift. It's when you try to get too close to the factory
7
> > > degree angle after installing a tall lift when the front pinion angle
> > > becomes excessive for the front driveshaft and u-joint.
> > >
> > > Jerry
> > > --
> > > Jerry Bransford
> > > To email, remove 'me' from my email address
> > > N6TAY, PP-ASEL
> > > See the Geezer Jeep at
> > > http://members.***.net/jerrypb/
> > >
> > > "twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
> > > news:p_9Ac.1264$Q77.115@newssvr23.news.prodigy.com ...
> > >
> > >>How do you get -5.5 deg. without putting your front propeller shaft
out
> > >>of line? Mine is at -2.5 on a 4.5" lift.
> > >>
> > >>Jerry Bransford wrote:
> > >>
> > >>
> > >>>Caster angle shouldn't even be below 5.5 degrees, let alone zero.
For
> a
> > >
> > > 2"
> > >
> > >>>lift, Caster should actually be between 6 and 7 degrees of Caster
> angle.
> > >>>Are you thinking toe-in?
> > >>>
> > >>>Jerry
> > >>
> > >>
> > >>--
> > >>________________________________________________ ___________
> > >>tw
> > >>
> > >>03 TJ Rubicon - Rubicon Express 4.5"
> > >>01 XJ Sport
> > >>
> > >>There is a very fine line between "hobby" and "mental illness."
> > >>-- Dave Barry
> > >>
> > >>Pronunciation: 'jEp
> > >>Function: noun
> > >>Date: 1940
> > >>
> > >>Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> > >>A small general-purpose motor vehicle with 80-inch wheelbase,
> > >>1/4-ton capacity, and four-wheel drive used by the U.S. army in
> > >>World War II.
> > >>
> > >>(Please remove the OBVIOUS to reply by email)
> > >>________________________________________________ ___________
> > >>
> > >
> > >
> > >
> >
> > --
> > __________________________________________________ _________
> > tw
> >
> > 03 TJ Rubicon - Rubicon Express 4.5"
> > 01 XJ Sport
> >
> > There is a very fine line between "hobby" and "mental illness."
> > -- Dave Barry
> >
> > Pronunciation: 'jEp
> > Function: noun
> > Date: 1940
> >
> > Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> > A small general-purpose motor vehicle with 80-inch wheelbase,
> > 1/4-ton capacity, and four-wheel drive used by the U.S. army in
> > World War II.
> >
> > (Please remove the OBVIOUS to reply by email)
> > __________________________________________________ _________
> >
>
>
non-existent adjustable lower arms, shorten your upper arms by the same
number of turns. I was at about 3.5 degrees before and 3 turns brought my
caster up to where I needed it.
And the tech was correct that the driveshaft has priority but he was
clueless on limiting the Caster angle to only 2.5 degrees since the Caster
can usually be increased well beyond that, to around 5.5 to 6 degrees,
before the pinion angle becomes excessive for a 4 or 4.5" lift.
Jerry
--
Jerry Bransford
To email, remove 'me' from my email address
N6TAY, PP-ASEL
See the Geezer Jeep at
http://members.***.net/jerrypb/
"Jerry Bransford" <jerrypb@mecox.net> wrote in message
news:kriAc.9246$ey.3907@fed1read06...
> Tommy, Caster angle isn't super critical but 2.5 degrees is clearly way
> under what it needs. I would try four turns of your control arms
> (lengthening the lower arms) and see how it feels. Just do the same
number
> of turns on each arm and it'll work fine. :)
>
> Jerry
> --
> Jerry Bransford
> To email, remove 'me' from my email address
> N6TAY, PP-ASEL
> See the Geezer Jeep at
> http://members.***.net/jerrypb/
>
> "twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
> news:aIhAc.1298$Q77.901@newssvr23.news.prodigy.com ...
> > Right. However the last tech wouldn't go past 2.5deg. saying that the
> > DShaft has priority. I'm still not happy with the steering. Can I
> > ballpark the caster measurement? I know that the last alignment gave me
> > roughly 2.5 deg., so to get to 5.5 deg. I'll have to shorten the RE
> > upper control arms, but I'm not sure how far. I don't have the equipt.
> > to measure caster, obviously, but another $80 alignment isn't that
> > appealing either. Since I know where it is now (2.5), can I shorten each
> > arm, equally, to acheive a better caster angle and how many turns would
> > I attempt?
> >
> > Jerry Bransford wrote:
> >
> > > 7 degrees is the factory specified Caster angle for a Wrangler. If
you
> try
> > > to keep 7 degrees with 4.5" of lift, you do get front driveshaft
> vibration
> > > due to excessive pinion angle. But 5.5 to 6 degrees is entirely
> appropriate
> > > and works well. It's the standard recommended Caster angle when you
get
> to
> > > 4-5" of lift which won't cause any front driveshaft
problems/vibrations
> but
> > > it does give you enough Caster angle to give good steering qualities.
> My
> > > own TJ is set to nearly six degrees and that worked very well with my
> 5.5"
> > > of suspension lift. It's when you try to get too close to the factory
7
> > > degree angle after installing a tall lift when the front pinion angle
> > > becomes excessive for the front driveshaft and u-joint.
> > >
> > > Jerry
> > > --
> > > Jerry Bransford
> > > To email, remove 'me' from my email address
> > > N6TAY, PP-ASEL
> > > See the Geezer Jeep at
> > > http://members.***.net/jerrypb/
> > >
> > > "twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
> > > news:p_9Ac.1264$Q77.115@newssvr23.news.prodigy.com ...
> > >
> > >>How do you get -5.5 deg. without putting your front propeller shaft
out
> > >>of line? Mine is at -2.5 on a 4.5" lift.
> > >>
> > >>Jerry Bransford wrote:
> > >>
> > >>
> > >>>Caster angle shouldn't even be below 5.5 degrees, let alone zero.
For
> a
> > >
> > > 2"
> > >
> > >>>lift, Caster should actually be between 6 and 7 degrees of Caster
> angle.
> > >>>Are you thinking toe-in?
> > >>>
> > >>>Jerry
> > >>
> > >>
> > >>--
> > >>________________________________________________ ___________
> > >>tw
> > >>
> > >>03 TJ Rubicon - Rubicon Express 4.5"
> > >>01 XJ Sport
> > >>
> > >>There is a very fine line between "hobby" and "mental illness."
> > >>-- Dave Barry
> > >>
> > >>Pronunciation: 'jEp
> > >>Function: noun
> > >>Date: 1940
> > >>
> > >>Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> > >>A small general-purpose motor vehicle with 80-inch wheelbase,
> > >>1/4-ton capacity, and four-wheel drive used by the U.S. army in
> > >>World War II.
> > >>
> > >>(Please remove the OBVIOUS to reply by email)
> > >>________________________________________________ ___________
> > >>
> > >
> > >
> > >
> >
> > --
> > __________________________________________________ _________
> > tw
> >
> > 03 TJ Rubicon - Rubicon Express 4.5"
> > 01 XJ Sport
> >
> > There is a very fine line between "hobby" and "mental illness."
> > -- Dave Barry
> >
> > Pronunciation: 'jEp
> > Function: noun
> > Date: 1940
> >
> > Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> > A small general-purpose motor vehicle with 80-inch wheelbase,
> > 1/4-ton capacity, and four-wheel drive used by the U.S. army in
> > World War II.
> >
> > (Please remove the OBVIOUS to reply by email)
> > __________________________________________________ _________
> >
>
>
#35
Guest
Posts: n/a
Re: Wobble (whoops)
Tommy, of course you caught this but instead of lengthening your
non-existent adjustable lower arms, shorten your upper arms by the same
number of turns. I was at about 3.5 degrees before and 3 turns brought my
caster up to where I needed it.
And the tech was correct that the driveshaft has priority but he was
clueless on limiting the Caster angle to only 2.5 degrees since the Caster
can usually be increased well beyond that, to around 5.5 to 6 degrees,
before the pinion angle becomes excessive for a 4 or 4.5" lift.
Jerry
--
Jerry Bransford
To email, remove 'me' from my email address
N6TAY, PP-ASEL
See the Geezer Jeep at
http://members.***.net/jerrypb/
"Jerry Bransford" <jerrypb@mecox.net> wrote in message
news:kriAc.9246$ey.3907@fed1read06...
> Tommy, Caster angle isn't super critical but 2.5 degrees is clearly way
> under what it needs. I would try four turns of your control arms
> (lengthening the lower arms) and see how it feels. Just do the same
number
> of turns on each arm and it'll work fine. :)
>
> Jerry
> --
> Jerry Bransford
> To email, remove 'me' from my email address
> N6TAY, PP-ASEL
> See the Geezer Jeep at
> http://members.***.net/jerrypb/
>
> "twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
> news:aIhAc.1298$Q77.901@newssvr23.news.prodigy.com ...
> > Right. However the last tech wouldn't go past 2.5deg. saying that the
> > DShaft has priority. I'm still not happy with the steering. Can I
> > ballpark the caster measurement? I know that the last alignment gave me
> > roughly 2.5 deg., so to get to 5.5 deg. I'll have to shorten the RE
> > upper control arms, but I'm not sure how far. I don't have the equipt.
> > to measure caster, obviously, but another $80 alignment isn't that
> > appealing either. Since I know where it is now (2.5), can I shorten each
> > arm, equally, to acheive a better caster angle and how many turns would
> > I attempt?
> >
> > Jerry Bransford wrote:
> >
> > > 7 degrees is the factory specified Caster angle for a Wrangler. If
you
> try
> > > to keep 7 degrees with 4.5" of lift, you do get front driveshaft
> vibration
> > > due to excessive pinion angle. But 5.5 to 6 degrees is entirely
> appropriate
> > > and works well. It's the standard recommended Caster angle when you
get
> to
> > > 4-5" of lift which won't cause any front driveshaft
problems/vibrations
> but
> > > it does give you enough Caster angle to give good steering qualities.
> My
> > > own TJ is set to nearly six degrees and that worked very well with my
> 5.5"
> > > of suspension lift. It's when you try to get too close to the factory
7
> > > degree angle after installing a tall lift when the front pinion angle
> > > becomes excessive for the front driveshaft and u-joint.
> > >
> > > Jerry
> > > --
> > > Jerry Bransford
> > > To email, remove 'me' from my email address
> > > N6TAY, PP-ASEL
> > > See the Geezer Jeep at
> > > http://members.***.net/jerrypb/
> > >
> > > "twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
> > > news:p_9Ac.1264$Q77.115@newssvr23.news.prodigy.com ...
> > >
> > >>How do you get -5.5 deg. without putting your front propeller shaft
out
> > >>of line? Mine is at -2.5 on a 4.5" lift.
> > >>
> > >>Jerry Bransford wrote:
> > >>
> > >>
> > >>>Caster angle shouldn't even be below 5.5 degrees, let alone zero.
For
> a
> > >
> > > 2"
> > >
> > >>>lift, Caster should actually be between 6 and 7 degrees of Caster
> angle.
> > >>>Are you thinking toe-in?
> > >>>
> > >>>Jerry
> > >>
> > >>
> > >>--
> > >>________________________________________________ ___________
> > >>tw
> > >>
> > >>03 TJ Rubicon - Rubicon Express 4.5"
> > >>01 XJ Sport
> > >>
> > >>There is a very fine line between "hobby" and "mental illness."
> > >>-- Dave Barry
> > >>
> > >>Pronunciation: 'jEp
> > >>Function: noun
> > >>Date: 1940
> > >>
> > >>Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> > >>A small general-purpose motor vehicle with 80-inch wheelbase,
> > >>1/4-ton capacity, and four-wheel drive used by the U.S. army in
> > >>World War II.
> > >>
> > >>(Please remove the OBVIOUS to reply by email)
> > >>________________________________________________ ___________
> > >>
> > >
> > >
> > >
> >
> > --
> > __________________________________________________ _________
> > tw
> >
> > 03 TJ Rubicon - Rubicon Express 4.5"
> > 01 XJ Sport
> >
> > There is a very fine line between "hobby" and "mental illness."
> > -- Dave Barry
> >
> > Pronunciation: 'jEp
> > Function: noun
> > Date: 1940
> >
> > Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> > A small general-purpose motor vehicle with 80-inch wheelbase,
> > 1/4-ton capacity, and four-wheel drive used by the U.S. army in
> > World War II.
> >
> > (Please remove the OBVIOUS to reply by email)
> > __________________________________________________ _________
> >
>
>
non-existent adjustable lower arms, shorten your upper arms by the same
number of turns. I was at about 3.5 degrees before and 3 turns brought my
caster up to where I needed it.
And the tech was correct that the driveshaft has priority but he was
clueless on limiting the Caster angle to only 2.5 degrees since the Caster
can usually be increased well beyond that, to around 5.5 to 6 degrees,
before the pinion angle becomes excessive for a 4 or 4.5" lift.
Jerry
--
Jerry Bransford
To email, remove 'me' from my email address
N6TAY, PP-ASEL
See the Geezer Jeep at
http://members.***.net/jerrypb/
"Jerry Bransford" <jerrypb@mecox.net> wrote in message
news:kriAc.9246$ey.3907@fed1read06...
> Tommy, Caster angle isn't super critical but 2.5 degrees is clearly way
> under what it needs. I would try four turns of your control arms
> (lengthening the lower arms) and see how it feels. Just do the same
number
> of turns on each arm and it'll work fine. :)
>
> Jerry
> --
> Jerry Bransford
> To email, remove 'me' from my email address
> N6TAY, PP-ASEL
> See the Geezer Jeep at
> http://members.***.net/jerrypb/
>
> "twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
> news:aIhAc.1298$Q77.901@newssvr23.news.prodigy.com ...
> > Right. However the last tech wouldn't go past 2.5deg. saying that the
> > DShaft has priority. I'm still not happy with the steering. Can I
> > ballpark the caster measurement? I know that the last alignment gave me
> > roughly 2.5 deg., so to get to 5.5 deg. I'll have to shorten the RE
> > upper control arms, but I'm not sure how far. I don't have the equipt.
> > to measure caster, obviously, but another $80 alignment isn't that
> > appealing either. Since I know where it is now (2.5), can I shorten each
> > arm, equally, to acheive a better caster angle and how many turns would
> > I attempt?
> >
> > Jerry Bransford wrote:
> >
> > > 7 degrees is the factory specified Caster angle for a Wrangler. If
you
> try
> > > to keep 7 degrees with 4.5" of lift, you do get front driveshaft
> vibration
> > > due to excessive pinion angle. But 5.5 to 6 degrees is entirely
> appropriate
> > > and works well. It's the standard recommended Caster angle when you
get
> to
> > > 4-5" of lift which won't cause any front driveshaft
problems/vibrations
> but
> > > it does give you enough Caster angle to give good steering qualities.
> My
> > > own TJ is set to nearly six degrees and that worked very well with my
> 5.5"
> > > of suspension lift. It's when you try to get too close to the factory
7
> > > degree angle after installing a tall lift when the front pinion angle
> > > becomes excessive for the front driveshaft and u-joint.
> > >
> > > Jerry
> > > --
> > > Jerry Bransford
> > > To email, remove 'me' from my email address
> > > N6TAY, PP-ASEL
> > > See the Geezer Jeep at
> > > http://members.***.net/jerrypb/
> > >
> > > "twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
> > > news:p_9Ac.1264$Q77.115@newssvr23.news.prodigy.com ...
> > >
> > >>How do you get -5.5 deg. without putting your front propeller shaft
out
> > >>of line? Mine is at -2.5 on a 4.5" lift.
> > >>
> > >>Jerry Bransford wrote:
> > >>
> > >>
> > >>>Caster angle shouldn't even be below 5.5 degrees, let alone zero.
For
> a
> > >
> > > 2"
> > >
> > >>>lift, Caster should actually be between 6 and 7 degrees of Caster
> angle.
> > >>>Are you thinking toe-in?
> > >>>
> > >>>Jerry
> > >>
> > >>
> > >>--
> > >>________________________________________________ ___________
> > >>tw
> > >>
> > >>03 TJ Rubicon - Rubicon Express 4.5"
> > >>01 XJ Sport
> > >>
> > >>There is a very fine line between "hobby" and "mental illness."
> > >>-- Dave Barry
> > >>
> > >>Pronunciation: 'jEp
> > >>Function: noun
> > >>Date: 1940
> > >>
> > >>Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> > >>A small general-purpose motor vehicle with 80-inch wheelbase,
> > >>1/4-ton capacity, and four-wheel drive used by the U.S. army in
> > >>World War II.
> > >>
> > >>(Please remove the OBVIOUS to reply by email)
> > >>________________________________________________ ___________
> > >>
> > >
> > >
> > >
> >
> > --
> > __________________________________________________ _________
> > tw
> >
> > 03 TJ Rubicon - Rubicon Express 4.5"
> > 01 XJ Sport
> >
> > There is a very fine line between "hobby" and "mental illness."
> > -- Dave Barry
> >
> > Pronunciation: 'jEp
> > Function: noun
> > Date: 1940
> >
> > Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> > A small general-purpose motor vehicle with 80-inch wheelbase,
> > 1/4-ton capacity, and four-wheel drive used by the U.S. army in
> > World War II.
> >
> > (Please remove the OBVIOUS to reply by email)
> > __________________________________________________ _________
> >
>
>
#36
Guest
Posts: n/a
Re: Wobble (whoops)
Tommy, of course you caught this but instead of lengthening your
non-existent adjustable lower arms, shorten your upper arms by the same
number of turns. I was at about 3.5 degrees before and 3 turns brought my
caster up to where I needed it.
And the tech was correct that the driveshaft has priority but he was
clueless on limiting the Caster angle to only 2.5 degrees since the Caster
can usually be increased well beyond that, to around 5.5 to 6 degrees,
before the pinion angle becomes excessive for a 4 or 4.5" lift.
Jerry
--
Jerry Bransford
To email, remove 'me' from my email address
N6TAY, PP-ASEL
See the Geezer Jeep at
http://members.***.net/jerrypb/
"Jerry Bransford" <jerrypb@mecox.net> wrote in message
news:kriAc.9246$ey.3907@fed1read06...
> Tommy, Caster angle isn't super critical but 2.5 degrees is clearly way
> under what it needs. I would try four turns of your control arms
> (lengthening the lower arms) and see how it feels. Just do the same
number
> of turns on each arm and it'll work fine. :)
>
> Jerry
> --
> Jerry Bransford
> To email, remove 'me' from my email address
> N6TAY, PP-ASEL
> See the Geezer Jeep at
> http://members.***.net/jerrypb/
>
> "twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
> news:aIhAc.1298$Q77.901@newssvr23.news.prodigy.com ...
> > Right. However the last tech wouldn't go past 2.5deg. saying that the
> > DShaft has priority. I'm still not happy with the steering. Can I
> > ballpark the caster measurement? I know that the last alignment gave me
> > roughly 2.5 deg., so to get to 5.5 deg. I'll have to shorten the RE
> > upper control arms, but I'm not sure how far. I don't have the equipt.
> > to measure caster, obviously, but another $80 alignment isn't that
> > appealing either. Since I know where it is now (2.5), can I shorten each
> > arm, equally, to acheive a better caster angle and how many turns would
> > I attempt?
> >
> > Jerry Bransford wrote:
> >
> > > 7 degrees is the factory specified Caster angle for a Wrangler. If
you
> try
> > > to keep 7 degrees with 4.5" of lift, you do get front driveshaft
> vibration
> > > due to excessive pinion angle. But 5.5 to 6 degrees is entirely
> appropriate
> > > and works well. It's the standard recommended Caster angle when you
get
> to
> > > 4-5" of lift which won't cause any front driveshaft
problems/vibrations
> but
> > > it does give you enough Caster angle to give good steering qualities.
> My
> > > own TJ is set to nearly six degrees and that worked very well with my
> 5.5"
> > > of suspension lift. It's when you try to get too close to the factory
7
> > > degree angle after installing a tall lift when the front pinion angle
> > > becomes excessive for the front driveshaft and u-joint.
> > >
> > > Jerry
> > > --
> > > Jerry Bransford
> > > To email, remove 'me' from my email address
> > > N6TAY, PP-ASEL
> > > See the Geezer Jeep at
> > > http://members.***.net/jerrypb/
> > >
> > > "twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
> > > news:p_9Ac.1264$Q77.115@newssvr23.news.prodigy.com ...
> > >
> > >>How do you get -5.5 deg. without putting your front propeller shaft
out
> > >>of line? Mine is at -2.5 on a 4.5" lift.
> > >>
> > >>Jerry Bransford wrote:
> > >>
> > >>
> > >>>Caster angle shouldn't even be below 5.5 degrees, let alone zero.
For
> a
> > >
> > > 2"
> > >
> > >>>lift, Caster should actually be between 6 and 7 degrees of Caster
> angle.
> > >>>Are you thinking toe-in?
> > >>>
> > >>>Jerry
> > >>
> > >>
> > >>--
> > >>________________________________________________ ___________
> > >>tw
> > >>
> > >>03 TJ Rubicon - Rubicon Express 4.5"
> > >>01 XJ Sport
> > >>
> > >>There is a very fine line between "hobby" and "mental illness."
> > >>-- Dave Barry
> > >>
> > >>Pronunciation: 'jEp
> > >>Function: noun
> > >>Date: 1940
> > >>
> > >>Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> > >>A small general-purpose motor vehicle with 80-inch wheelbase,
> > >>1/4-ton capacity, and four-wheel drive used by the U.S. army in
> > >>World War II.
> > >>
> > >>(Please remove the OBVIOUS to reply by email)
> > >>________________________________________________ ___________
> > >>
> > >
> > >
> > >
> >
> > --
> > __________________________________________________ _________
> > tw
> >
> > 03 TJ Rubicon - Rubicon Express 4.5"
> > 01 XJ Sport
> >
> > There is a very fine line between "hobby" and "mental illness."
> > -- Dave Barry
> >
> > Pronunciation: 'jEp
> > Function: noun
> > Date: 1940
> >
> > Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> > A small general-purpose motor vehicle with 80-inch wheelbase,
> > 1/4-ton capacity, and four-wheel drive used by the U.S. army in
> > World War II.
> >
> > (Please remove the OBVIOUS to reply by email)
> > __________________________________________________ _________
> >
>
>
non-existent adjustable lower arms, shorten your upper arms by the same
number of turns. I was at about 3.5 degrees before and 3 turns brought my
caster up to where I needed it.
And the tech was correct that the driveshaft has priority but he was
clueless on limiting the Caster angle to only 2.5 degrees since the Caster
can usually be increased well beyond that, to around 5.5 to 6 degrees,
before the pinion angle becomes excessive for a 4 or 4.5" lift.
Jerry
--
Jerry Bransford
To email, remove 'me' from my email address
N6TAY, PP-ASEL
See the Geezer Jeep at
http://members.***.net/jerrypb/
"Jerry Bransford" <jerrypb@mecox.net> wrote in message
news:kriAc.9246$ey.3907@fed1read06...
> Tommy, Caster angle isn't super critical but 2.5 degrees is clearly way
> under what it needs. I would try four turns of your control arms
> (lengthening the lower arms) and see how it feels. Just do the same
number
> of turns on each arm and it'll work fine. :)
>
> Jerry
> --
> Jerry Bransford
> To email, remove 'me' from my email address
> N6TAY, PP-ASEL
> See the Geezer Jeep at
> http://members.***.net/jerrypb/
>
> "twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
> news:aIhAc.1298$Q77.901@newssvr23.news.prodigy.com ...
> > Right. However the last tech wouldn't go past 2.5deg. saying that the
> > DShaft has priority. I'm still not happy with the steering. Can I
> > ballpark the caster measurement? I know that the last alignment gave me
> > roughly 2.5 deg., so to get to 5.5 deg. I'll have to shorten the RE
> > upper control arms, but I'm not sure how far. I don't have the equipt.
> > to measure caster, obviously, but another $80 alignment isn't that
> > appealing either. Since I know where it is now (2.5), can I shorten each
> > arm, equally, to acheive a better caster angle and how many turns would
> > I attempt?
> >
> > Jerry Bransford wrote:
> >
> > > 7 degrees is the factory specified Caster angle for a Wrangler. If
you
> try
> > > to keep 7 degrees with 4.5" of lift, you do get front driveshaft
> vibration
> > > due to excessive pinion angle. But 5.5 to 6 degrees is entirely
> appropriate
> > > and works well. It's the standard recommended Caster angle when you
get
> to
> > > 4-5" of lift which won't cause any front driveshaft
problems/vibrations
> but
> > > it does give you enough Caster angle to give good steering qualities.
> My
> > > own TJ is set to nearly six degrees and that worked very well with my
> 5.5"
> > > of suspension lift. It's when you try to get too close to the factory
7
> > > degree angle after installing a tall lift when the front pinion angle
> > > becomes excessive for the front driveshaft and u-joint.
> > >
> > > Jerry
> > > --
> > > Jerry Bransford
> > > To email, remove 'me' from my email address
> > > N6TAY, PP-ASEL
> > > See the Geezer Jeep at
> > > http://members.***.net/jerrypb/
> > >
> > > "twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
> > > news:p_9Ac.1264$Q77.115@newssvr23.news.prodigy.com ...
> > >
> > >>How do you get -5.5 deg. without putting your front propeller shaft
out
> > >>of line? Mine is at -2.5 on a 4.5" lift.
> > >>
> > >>Jerry Bransford wrote:
> > >>
> > >>
> > >>>Caster angle shouldn't even be below 5.5 degrees, let alone zero.
For
> a
> > >
> > > 2"
> > >
> > >>>lift, Caster should actually be between 6 and 7 degrees of Caster
> angle.
> > >>>Are you thinking toe-in?
> > >>>
> > >>>Jerry
> > >>
> > >>
> > >>--
> > >>________________________________________________ ___________
> > >>tw
> > >>
> > >>03 TJ Rubicon - Rubicon Express 4.5"
> > >>01 XJ Sport
> > >>
> > >>There is a very fine line between "hobby" and "mental illness."
> > >>-- Dave Barry
> > >>
> > >>Pronunciation: 'jEp
> > >>Function: noun
> > >>Date: 1940
> > >>
> > >>Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> > >>A small general-purpose motor vehicle with 80-inch wheelbase,
> > >>1/4-ton capacity, and four-wheel drive used by the U.S. army in
> > >>World War II.
> > >>
> > >>(Please remove the OBVIOUS to reply by email)
> > >>________________________________________________ ___________
> > >>
> > >
> > >
> > >
> >
> > --
> > __________________________________________________ _________
> > tw
> >
> > 03 TJ Rubicon - Rubicon Express 4.5"
> > 01 XJ Sport
> >
> > There is a very fine line between "hobby" and "mental illness."
> > -- Dave Barry
> >
> > Pronunciation: 'jEp
> > Function: noun
> > Date: 1940
> >
> > Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> > A small general-purpose motor vehicle with 80-inch wheelbase,
> > 1/4-ton capacity, and four-wheel drive used by the U.S. army in
> > World War II.
> >
> > (Please remove the OBVIOUS to reply by email)
> > __________________________________________________ _________
> >
>
>
#37
Guest
Posts: n/a
Re: Wobble (whoops)
Tommy, of course you caught this but instead of lengthening your
non-existent adjustable lower arms, shorten your upper arms by the same
number of turns. I was at about 3.5 degrees before and 3 turns brought my
caster up to where I needed it.
And the tech was correct that the driveshaft has priority but he was
clueless on limiting the Caster angle to only 2.5 degrees since the Caster
can usually be increased well beyond that, to around 5.5 to 6 degrees,
before the pinion angle becomes excessive for a 4 or 4.5" lift.
Jerry
--
Jerry Bransford
To email, remove 'me' from my email address
N6TAY, PP-ASEL
See the Geezer Jeep at
http://members.***.net/jerrypb/
"Jerry Bransford" <jerrypb@mecox.net> wrote in message
news:kriAc.9246$ey.3907@fed1read06...
> Tommy, Caster angle isn't super critical but 2.5 degrees is clearly way
> under what it needs. I would try four turns of your control arms
> (lengthening the lower arms) and see how it feels. Just do the same
number
> of turns on each arm and it'll work fine. :)
>
> Jerry
> --
> Jerry Bransford
> To email, remove 'me' from my email address
> N6TAY, PP-ASEL
> See the Geezer Jeep at
> http://members.***.net/jerrypb/
>
> "twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
> news:aIhAc.1298$Q77.901@newssvr23.news.prodigy.com ...
> > Right. However the last tech wouldn't go past 2.5deg. saying that the
> > DShaft has priority. I'm still not happy with the steering. Can I
> > ballpark the caster measurement? I know that the last alignment gave me
> > roughly 2.5 deg., so to get to 5.5 deg. I'll have to shorten the RE
> > upper control arms, but I'm not sure how far. I don't have the equipt.
> > to measure caster, obviously, but another $80 alignment isn't that
> > appealing either. Since I know where it is now (2.5), can I shorten each
> > arm, equally, to acheive a better caster angle and how many turns would
> > I attempt?
> >
> > Jerry Bransford wrote:
> >
> > > 7 degrees is the factory specified Caster angle for a Wrangler. If
you
> try
> > > to keep 7 degrees with 4.5" of lift, you do get front driveshaft
> vibration
> > > due to excessive pinion angle. But 5.5 to 6 degrees is entirely
> appropriate
> > > and works well. It's the standard recommended Caster angle when you
get
> to
> > > 4-5" of lift which won't cause any front driveshaft
problems/vibrations
> but
> > > it does give you enough Caster angle to give good steering qualities.
> My
> > > own TJ is set to nearly six degrees and that worked very well with my
> 5.5"
> > > of suspension lift. It's when you try to get too close to the factory
7
> > > degree angle after installing a tall lift when the front pinion angle
> > > becomes excessive for the front driveshaft and u-joint.
> > >
> > > Jerry
> > > --
> > > Jerry Bransford
> > > To email, remove 'me' from my email address
> > > N6TAY, PP-ASEL
> > > See the Geezer Jeep at
> > > http://members.***.net/jerrypb/
> > >
> > > "twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
> > > news:p_9Ac.1264$Q77.115@newssvr23.news.prodigy.com ...
> > >
> > >>How do you get -5.5 deg. without putting your front propeller shaft
out
> > >>of line? Mine is at -2.5 on a 4.5" lift.
> > >>
> > >>Jerry Bransford wrote:
> > >>
> > >>
> > >>>Caster angle shouldn't even be below 5.5 degrees, let alone zero.
For
> a
> > >
> > > 2"
> > >
> > >>>lift, Caster should actually be between 6 and 7 degrees of Caster
> angle.
> > >>>Are you thinking toe-in?
> > >>>
> > >>>Jerry
> > >>
> > >>
> > >>--
> > >>________________________________________________ ___________
> > >>tw
> > >>
> > >>03 TJ Rubicon - Rubicon Express 4.5"
> > >>01 XJ Sport
> > >>
> > >>There is a very fine line between "hobby" and "mental illness."
> > >>-- Dave Barry
> > >>
> > >>Pronunciation: 'jEp
> > >>Function: noun
> > >>Date: 1940
> > >>
> > >>Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> > >>A small general-purpose motor vehicle with 80-inch wheelbase,
> > >>1/4-ton capacity, and four-wheel drive used by the U.S. army in
> > >>World War II.
> > >>
> > >>(Please remove the OBVIOUS to reply by email)
> > >>________________________________________________ ___________
> > >>
> > >
> > >
> > >
> >
> > --
> > __________________________________________________ _________
> > tw
> >
> > 03 TJ Rubicon - Rubicon Express 4.5"
> > 01 XJ Sport
> >
> > There is a very fine line between "hobby" and "mental illness."
> > -- Dave Barry
> >
> > Pronunciation: 'jEp
> > Function: noun
> > Date: 1940
> >
> > Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> > A small general-purpose motor vehicle with 80-inch wheelbase,
> > 1/4-ton capacity, and four-wheel drive used by the U.S. army in
> > World War II.
> >
> > (Please remove the OBVIOUS to reply by email)
> > __________________________________________________ _________
> >
>
>
non-existent adjustable lower arms, shorten your upper arms by the same
number of turns. I was at about 3.5 degrees before and 3 turns brought my
caster up to where I needed it.
And the tech was correct that the driveshaft has priority but he was
clueless on limiting the Caster angle to only 2.5 degrees since the Caster
can usually be increased well beyond that, to around 5.5 to 6 degrees,
before the pinion angle becomes excessive for a 4 or 4.5" lift.
Jerry
--
Jerry Bransford
To email, remove 'me' from my email address
N6TAY, PP-ASEL
See the Geezer Jeep at
http://members.***.net/jerrypb/
"Jerry Bransford" <jerrypb@mecox.net> wrote in message
news:kriAc.9246$ey.3907@fed1read06...
> Tommy, Caster angle isn't super critical but 2.5 degrees is clearly way
> under what it needs. I would try four turns of your control arms
> (lengthening the lower arms) and see how it feels. Just do the same
number
> of turns on each arm and it'll work fine. :)
>
> Jerry
> --
> Jerry Bransford
> To email, remove 'me' from my email address
> N6TAY, PP-ASEL
> See the Geezer Jeep at
> http://members.***.net/jerrypb/
>
> "twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
> news:aIhAc.1298$Q77.901@newssvr23.news.prodigy.com ...
> > Right. However the last tech wouldn't go past 2.5deg. saying that the
> > DShaft has priority. I'm still not happy with the steering. Can I
> > ballpark the caster measurement? I know that the last alignment gave me
> > roughly 2.5 deg., so to get to 5.5 deg. I'll have to shorten the RE
> > upper control arms, but I'm not sure how far. I don't have the equipt.
> > to measure caster, obviously, but another $80 alignment isn't that
> > appealing either. Since I know where it is now (2.5), can I shorten each
> > arm, equally, to acheive a better caster angle and how many turns would
> > I attempt?
> >
> > Jerry Bransford wrote:
> >
> > > 7 degrees is the factory specified Caster angle for a Wrangler. If
you
> try
> > > to keep 7 degrees with 4.5" of lift, you do get front driveshaft
> vibration
> > > due to excessive pinion angle. But 5.5 to 6 degrees is entirely
> appropriate
> > > and works well. It's the standard recommended Caster angle when you
get
> to
> > > 4-5" of lift which won't cause any front driveshaft
problems/vibrations
> but
> > > it does give you enough Caster angle to give good steering qualities.
> My
> > > own TJ is set to nearly six degrees and that worked very well with my
> 5.5"
> > > of suspension lift. It's when you try to get too close to the factory
7
> > > degree angle after installing a tall lift when the front pinion angle
> > > becomes excessive for the front driveshaft and u-joint.
> > >
> > > Jerry
> > > --
> > > Jerry Bransford
> > > To email, remove 'me' from my email address
> > > N6TAY, PP-ASEL
> > > See the Geezer Jeep at
> > > http://members.***.net/jerrypb/
> > >
> > > "twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
> > > news:p_9Ac.1264$Q77.115@newssvr23.news.prodigy.com ...
> > >
> > >>How do you get -5.5 deg. without putting your front propeller shaft
out
> > >>of line? Mine is at -2.5 on a 4.5" lift.
> > >>
> > >>Jerry Bransford wrote:
> > >>
> > >>
> > >>>Caster angle shouldn't even be below 5.5 degrees, let alone zero.
For
> a
> > >
> > > 2"
> > >
> > >>>lift, Caster should actually be between 6 and 7 degrees of Caster
> angle.
> > >>>Are you thinking toe-in?
> > >>>
> > >>>Jerry
> > >>
> > >>
> > >>--
> > >>________________________________________________ ___________
> > >>tw
> > >>
> > >>03 TJ Rubicon - Rubicon Express 4.5"
> > >>01 XJ Sport
> > >>
> > >>There is a very fine line between "hobby" and "mental illness."
> > >>-- Dave Barry
> > >>
> > >>Pronunciation: 'jEp
> > >>Function: noun
> > >>Date: 1940
> > >>
> > >>Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> > >>A small general-purpose motor vehicle with 80-inch wheelbase,
> > >>1/4-ton capacity, and four-wheel drive used by the U.S. army in
> > >>World War II.
> > >>
> > >>(Please remove the OBVIOUS to reply by email)
> > >>________________________________________________ ___________
> > >>
> > >
> > >
> > >
> >
> > --
> > __________________________________________________ _________
> > tw
> >
> > 03 TJ Rubicon - Rubicon Express 4.5"
> > 01 XJ Sport
> >
> > There is a very fine line between "hobby" and "mental illness."
> > -- Dave Barry
> >
> > Pronunciation: 'jEp
> > Function: noun
> > Date: 1940
> >
> > Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> > A small general-purpose motor vehicle with 80-inch wheelbase,
> > 1/4-ton capacity, and four-wheel drive used by the U.S. army in
> > World War II.
> >
> > (Please remove the OBVIOUS to reply by email)
> > __________________________________________________ _________
> >
>
>
#38
Guest
Posts: n/a
Re: Wobble (whoops)
That's what I needed to hear! ;) Thanks, Jerry!!
Jerry Bransford wrote:
> Tommy, of course you caught this but instead of lengthening your
> non-existent adjustable lower arms, shorten your upper arms by the same
> number of turns. I was at about 3.5 degrees before and 3 turns brought my
> caster up to where I needed it.
>
> And the tech was correct that the driveshaft has priority but he was
> clueless on limiting the Caster angle to only 2.5 degrees since the Caster
> can usually be increased well beyond that, to around 5.5 to 6 degrees,
> before the pinion angle becomes excessive for a 4 or 4.5" lift.
>
> Jerry
> --
> Jerry Bransford
> To email, remove 'me' from my email address
> N6TAY, PP-ASEL
> See the Geezer Jeep at
> http://members.***.net/jerrypb/
>
> "Jerry Bransford" <jerrypb@mecox.net> wrote in message
> news:kriAc.9246$ey.3907@fed1read06...
>
>>Tommy, Caster angle isn't super critical but 2.5 degrees is clearly way
>>under what it needs. I would try four turns of your control arms
>>(lengthening the lower arms) and see how it feels. Just do the same
>
> number
>
>>of turns on each arm and it'll work fine. :)
>>
>>Jerry
>>--
>>Jerry Bransford
>>To email, remove 'me' from my email address
>>N6TAY, PP-ASEL
>>See the Geezer Jeep at
>>http://members.***.net/jerrypb/
>>
>>"twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
>>news:aIhAc.1298$Q77.901@newssvr23.news.prodigy.c om...
>>
>>>Right. However the last tech wouldn't go past 2.5deg. saying that the
>>>DShaft has priority. I'm still not happy with the steering. Can I
>>>ballpark the caster measurement? I know that the last alignment gave me
>>>roughly 2.5 deg., so to get to 5.5 deg. I'll have to shorten the RE
>>>upper control arms, but I'm not sure how far. I don't have the equipt.
>>>to measure caster, obviously, but another $80 alignment isn't that
>>>appealing either. Since I know where it is now (2.5), can I shorten each
>>>arm, equally, to acheive a better caster angle and how many turns would
>>>I attempt?
>>>
>>>Jerry Bransford wrote:
>>>
>>>
>>>>7 degrees is the factory specified Caster angle for a Wrangler. If
>
> you
>
>>try
>>
>>>>to keep 7 degrees with 4.5" of lift, you do get front driveshaft
>>
>>vibration
>>
>>>>due to excessive pinion angle. But 5.5 to 6 degrees is entirely
>>
>>appropriate
>>
>>>>and works well. It's the standard recommended Caster angle when you
>
> get
>
>>to
>>
>>>>4-5" of lift which won't cause any front driveshaft
>
> problems/vibrations
>
>>but
>>
>>>>it does give you enough Caster angle to give good steering qualities.
>>
>>My
>>
>>>>own TJ is set to nearly six degrees and that worked very well with my
>>
>>5.5"
>>
>>>>of suspension lift. It's when you try to get too close to the factory
>
> 7
>
>>>>degree angle after installing a tall lift when the front pinion angle
>>>>becomes excessive for the front driveshaft and u-joint.
>>>>
>>>>Jerry
>>>>--
>>>>Jerry Bransford
>>>>To email, remove 'me' from my email address
>>>>N6TAY, PP-ASEL
>>>>See the Geezer Jeep at
>>>>http://members.***.net/jerrypb/
>>>>
>>>>"twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
>>>>news:p_9Ac.1264$Q77.115@newssvr23.news.prodigy .com...
>>>>
>>>>
>>>>>How do you get -5.5 deg. without putting your front propeller shaft
>
> out
>
>>>>>of line? Mine is at -2.5 on a 4.5" lift.
>>>>>
>>>>>Jerry Bransford wrote:
>>>>>
>>>>>
>>>>>
>>>>>>Caster angle shouldn't even be below 5.5 degrees, let alone zero.
>
> For
>
>>a
>>
>>>>2"
>>>>
>>>>
>>>>>>lift, Caster should actually be between 6 and 7 degrees of Caster
>>
>>angle.
>>
>>>>>>Are you thinking toe-in?
>>>>>>
>>>>>>Jerry
>>>>>
>>>>>
>>>>>--
>>>>>_____________________________________________ ______________
>>>>>tw
>>>>>
>>>>>03 TJ Rubicon - Rubicon Express 4.5"
>>>>>01 XJ Sport
>>>>>
>>>>>There is a very fine line between "hobby" and "mental illness."
>>>>>-- Dave Barry
>>>>>
>>>>>Pronunciation: 'jEp
>>>>>Function: noun
>>>>>Date: 1940
>>>>>
>>>>>Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
>>>>>A small general-purpose motor vehicle with 80-inch wheelbase,
>>>>>1/4-ton capacity, and four-wheel drive used by the U.S. army in
>>>>>World War II.
>>>>>
>>>>>(Please remove the OBVIOUS to reply by email)
>>>>>_____________________________________________ ______________
>>>>>
>>>>
>>>>
>>>>
>>>--
>>>_______________________________________________ ____________
>>>tw
>>>
>>>03 TJ Rubicon - Rubicon Express 4.5"
>>>01 XJ Sport
>>>
>>>There is a very fine line between "hobby" and "mental illness."
>>>-- Dave Barry
>>>
>>>Pronunciation: 'jEp
>>>Function: noun
>>>Date: 1940
>>>
>>>Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
>>>A small general-purpose motor vehicle with 80-inch wheelbase,
>>>1/4-ton capacity, and four-wheel drive used by the U.S. army in
>>>World War II.
>>>
>>>(Please remove the OBVIOUS to reply by email)
>>>_______________________________________________ ____________
>>>
>>
>>
>
>
--
__________________________________________________ _________
tw
03 TJ Rubicon - Rubicon Express 4.5"
01 XJ Sport
There is a very fine line between "hobby" and "mental illness."
-- Dave Barry
Pronunciation: 'jEp
Function: noun
Date: 1940
Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
A small general-purpose motor vehicle with 80-inch wheelbase,
1/4-ton capacity, and four-wheel drive used by the U.S. army in
World War II.
(Please remove the OBVIOUS to reply by email)
__________________________________________________ _________
Jerry Bransford wrote:
> Tommy, of course you caught this but instead of lengthening your
> non-existent adjustable lower arms, shorten your upper arms by the same
> number of turns. I was at about 3.5 degrees before and 3 turns brought my
> caster up to where I needed it.
>
> And the tech was correct that the driveshaft has priority but he was
> clueless on limiting the Caster angle to only 2.5 degrees since the Caster
> can usually be increased well beyond that, to around 5.5 to 6 degrees,
> before the pinion angle becomes excessive for a 4 or 4.5" lift.
>
> Jerry
> --
> Jerry Bransford
> To email, remove 'me' from my email address
> N6TAY, PP-ASEL
> See the Geezer Jeep at
> http://members.***.net/jerrypb/
>
> "Jerry Bransford" <jerrypb@mecox.net> wrote in message
> news:kriAc.9246$ey.3907@fed1read06...
>
>>Tommy, Caster angle isn't super critical but 2.5 degrees is clearly way
>>under what it needs. I would try four turns of your control arms
>>(lengthening the lower arms) and see how it feels. Just do the same
>
> number
>
>>of turns on each arm and it'll work fine. :)
>>
>>Jerry
>>--
>>Jerry Bransford
>>To email, remove 'me' from my email address
>>N6TAY, PP-ASEL
>>See the Geezer Jeep at
>>http://members.***.net/jerrypb/
>>
>>"twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
>>news:aIhAc.1298$Q77.901@newssvr23.news.prodigy.c om...
>>
>>>Right. However the last tech wouldn't go past 2.5deg. saying that the
>>>DShaft has priority. I'm still not happy with the steering. Can I
>>>ballpark the caster measurement? I know that the last alignment gave me
>>>roughly 2.5 deg., so to get to 5.5 deg. I'll have to shorten the RE
>>>upper control arms, but I'm not sure how far. I don't have the equipt.
>>>to measure caster, obviously, but another $80 alignment isn't that
>>>appealing either. Since I know where it is now (2.5), can I shorten each
>>>arm, equally, to acheive a better caster angle and how many turns would
>>>I attempt?
>>>
>>>Jerry Bransford wrote:
>>>
>>>
>>>>7 degrees is the factory specified Caster angle for a Wrangler. If
>
> you
>
>>try
>>
>>>>to keep 7 degrees with 4.5" of lift, you do get front driveshaft
>>
>>vibration
>>
>>>>due to excessive pinion angle. But 5.5 to 6 degrees is entirely
>>
>>appropriate
>>
>>>>and works well. It's the standard recommended Caster angle when you
>
> get
>
>>to
>>
>>>>4-5" of lift which won't cause any front driveshaft
>
> problems/vibrations
>
>>but
>>
>>>>it does give you enough Caster angle to give good steering qualities.
>>
>>My
>>
>>>>own TJ is set to nearly six degrees and that worked very well with my
>>
>>5.5"
>>
>>>>of suspension lift. It's when you try to get too close to the factory
>
> 7
>
>>>>degree angle after installing a tall lift when the front pinion angle
>>>>becomes excessive for the front driveshaft and u-joint.
>>>>
>>>>Jerry
>>>>--
>>>>Jerry Bransford
>>>>To email, remove 'me' from my email address
>>>>N6TAY, PP-ASEL
>>>>See the Geezer Jeep at
>>>>http://members.***.net/jerrypb/
>>>>
>>>>"twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
>>>>news:p_9Ac.1264$Q77.115@newssvr23.news.prodigy .com...
>>>>
>>>>
>>>>>How do you get -5.5 deg. without putting your front propeller shaft
>
> out
>
>>>>>of line? Mine is at -2.5 on a 4.5" lift.
>>>>>
>>>>>Jerry Bransford wrote:
>>>>>
>>>>>
>>>>>
>>>>>>Caster angle shouldn't even be below 5.5 degrees, let alone zero.
>
> For
>
>>a
>>
>>>>2"
>>>>
>>>>
>>>>>>lift, Caster should actually be between 6 and 7 degrees of Caster
>>
>>angle.
>>
>>>>>>Are you thinking toe-in?
>>>>>>
>>>>>>Jerry
>>>>>
>>>>>
>>>>>--
>>>>>_____________________________________________ ______________
>>>>>tw
>>>>>
>>>>>03 TJ Rubicon - Rubicon Express 4.5"
>>>>>01 XJ Sport
>>>>>
>>>>>There is a very fine line between "hobby" and "mental illness."
>>>>>-- Dave Barry
>>>>>
>>>>>Pronunciation: 'jEp
>>>>>Function: noun
>>>>>Date: 1940
>>>>>
>>>>>Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
>>>>>A small general-purpose motor vehicle with 80-inch wheelbase,
>>>>>1/4-ton capacity, and four-wheel drive used by the U.S. army in
>>>>>World War II.
>>>>>
>>>>>(Please remove the OBVIOUS to reply by email)
>>>>>_____________________________________________ ______________
>>>>>
>>>>
>>>>
>>>>
>>>--
>>>_______________________________________________ ____________
>>>tw
>>>
>>>03 TJ Rubicon - Rubicon Express 4.5"
>>>01 XJ Sport
>>>
>>>There is a very fine line between "hobby" and "mental illness."
>>>-- Dave Barry
>>>
>>>Pronunciation: 'jEp
>>>Function: noun
>>>Date: 1940
>>>
>>>Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
>>>A small general-purpose motor vehicle with 80-inch wheelbase,
>>>1/4-ton capacity, and four-wheel drive used by the U.S. army in
>>>World War II.
>>>
>>>(Please remove the OBVIOUS to reply by email)
>>>_______________________________________________ ____________
>>>
>>
>>
>
>
--
__________________________________________________ _________
tw
03 TJ Rubicon - Rubicon Express 4.5"
01 XJ Sport
There is a very fine line between "hobby" and "mental illness."
-- Dave Barry
Pronunciation: 'jEp
Function: noun
Date: 1940
Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
A small general-purpose motor vehicle with 80-inch wheelbase,
1/4-ton capacity, and four-wheel drive used by the U.S. army in
World War II.
(Please remove the OBVIOUS to reply by email)
__________________________________________________ _________
#39
Guest
Posts: n/a
Re: Wobble (whoops)
That's what I needed to hear! ;) Thanks, Jerry!!
Jerry Bransford wrote:
> Tommy, of course you caught this but instead of lengthening your
> non-existent adjustable lower arms, shorten your upper arms by the same
> number of turns. I was at about 3.5 degrees before and 3 turns brought my
> caster up to where I needed it.
>
> And the tech was correct that the driveshaft has priority but he was
> clueless on limiting the Caster angle to only 2.5 degrees since the Caster
> can usually be increased well beyond that, to around 5.5 to 6 degrees,
> before the pinion angle becomes excessive for a 4 or 4.5" lift.
>
> Jerry
> --
> Jerry Bransford
> To email, remove 'me' from my email address
> N6TAY, PP-ASEL
> See the Geezer Jeep at
> http://members.***.net/jerrypb/
>
> "Jerry Bransford" <jerrypb@mecox.net> wrote in message
> news:kriAc.9246$ey.3907@fed1read06...
>
>>Tommy, Caster angle isn't super critical but 2.5 degrees is clearly way
>>under what it needs. I would try four turns of your control arms
>>(lengthening the lower arms) and see how it feels. Just do the same
>
> number
>
>>of turns on each arm and it'll work fine. :)
>>
>>Jerry
>>--
>>Jerry Bransford
>>To email, remove 'me' from my email address
>>N6TAY, PP-ASEL
>>See the Geezer Jeep at
>>http://members.***.net/jerrypb/
>>
>>"twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
>>news:aIhAc.1298$Q77.901@newssvr23.news.prodigy.c om...
>>
>>>Right. However the last tech wouldn't go past 2.5deg. saying that the
>>>DShaft has priority. I'm still not happy with the steering. Can I
>>>ballpark the caster measurement? I know that the last alignment gave me
>>>roughly 2.5 deg., so to get to 5.5 deg. I'll have to shorten the RE
>>>upper control arms, but I'm not sure how far. I don't have the equipt.
>>>to measure caster, obviously, but another $80 alignment isn't that
>>>appealing either. Since I know where it is now (2.5), can I shorten each
>>>arm, equally, to acheive a better caster angle and how many turns would
>>>I attempt?
>>>
>>>Jerry Bransford wrote:
>>>
>>>
>>>>7 degrees is the factory specified Caster angle for a Wrangler. If
>
> you
>
>>try
>>
>>>>to keep 7 degrees with 4.5" of lift, you do get front driveshaft
>>
>>vibration
>>
>>>>due to excessive pinion angle. But 5.5 to 6 degrees is entirely
>>
>>appropriate
>>
>>>>and works well. It's the standard recommended Caster angle when you
>
> get
>
>>to
>>
>>>>4-5" of lift which won't cause any front driveshaft
>
> problems/vibrations
>
>>but
>>
>>>>it does give you enough Caster angle to give good steering qualities.
>>
>>My
>>
>>>>own TJ is set to nearly six degrees and that worked very well with my
>>
>>5.5"
>>
>>>>of suspension lift. It's when you try to get too close to the factory
>
> 7
>
>>>>degree angle after installing a tall lift when the front pinion angle
>>>>becomes excessive for the front driveshaft and u-joint.
>>>>
>>>>Jerry
>>>>--
>>>>Jerry Bransford
>>>>To email, remove 'me' from my email address
>>>>N6TAY, PP-ASEL
>>>>See the Geezer Jeep at
>>>>http://members.***.net/jerrypb/
>>>>
>>>>"twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
>>>>news:p_9Ac.1264$Q77.115@newssvr23.news.prodigy .com...
>>>>
>>>>
>>>>>How do you get -5.5 deg. without putting your front propeller shaft
>
> out
>
>>>>>of line? Mine is at -2.5 on a 4.5" lift.
>>>>>
>>>>>Jerry Bransford wrote:
>>>>>
>>>>>
>>>>>
>>>>>>Caster angle shouldn't even be below 5.5 degrees, let alone zero.
>
> For
>
>>a
>>
>>>>2"
>>>>
>>>>
>>>>>>lift, Caster should actually be between 6 and 7 degrees of Caster
>>
>>angle.
>>
>>>>>>Are you thinking toe-in?
>>>>>>
>>>>>>Jerry
>>>>>
>>>>>
>>>>>--
>>>>>_____________________________________________ ______________
>>>>>tw
>>>>>
>>>>>03 TJ Rubicon - Rubicon Express 4.5"
>>>>>01 XJ Sport
>>>>>
>>>>>There is a very fine line between "hobby" and "mental illness."
>>>>>-- Dave Barry
>>>>>
>>>>>Pronunciation: 'jEp
>>>>>Function: noun
>>>>>Date: 1940
>>>>>
>>>>>Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
>>>>>A small general-purpose motor vehicle with 80-inch wheelbase,
>>>>>1/4-ton capacity, and four-wheel drive used by the U.S. army in
>>>>>World War II.
>>>>>
>>>>>(Please remove the OBVIOUS to reply by email)
>>>>>_____________________________________________ ______________
>>>>>
>>>>
>>>>
>>>>
>>>--
>>>_______________________________________________ ____________
>>>tw
>>>
>>>03 TJ Rubicon - Rubicon Express 4.5"
>>>01 XJ Sport
>>>
>>>There is a very fine line between "hobby" and "mental illness."
>>>-- Dave Barry
>>>
>>>Pronunciation: 'jEp
>>>Function: noun
>>>Date: 1940
>>>
>>>Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
>>>A small general-purpose motor vehicle with 80-inch wheelbase,
>>>1/4-ton capacity, and four-wheel drive used by the U.S. army in
>>>World War II.
>>>
>>>(Please remove the OBVIOUS to reply by email)
>>>_______________________________________________ ____________
>>>
>>
>>
>
>
--
__________________________________________________ _________
tw
03 TJ Rubicon - Rubicon Express 4.5"
01 XJ Sport
There is a very fine line between "hobby" and "mental illness."
-- Dave Barry
Pronunciation: 'jEp
Function: noun
Date: 1940
Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
A small general-purpose motor vehicle with 80-inch wheelbase,
1/4-ton capacity, and four-wheel drive used by the U.S. army in
World War II.
(Please remove the OBVIOUS to reply by email)
__________________________________________________ _________
Jerry Bransford wrote:
> Tommy, of course you caught this but instead of lengthening your
> non-existent adjustable lower arms, shorten your upper arms by the same
> number of turns. I was at about 3.5 degrees before and 3 turns brought my
> caster up to where I needed it.
>
> And the tech was correct that the driveshaft has priority but he was
> clueless on limiting the Caster angle to only 2.5 degrees since the Caster
> can usually be increased well beyond that, to around 5.5 to 6 degrees,
> before the pinion angle becomes excessive for a 4 or 4.5" lift.
>
> Jerry
> --
> Jerry Bransford
> To email, remove 'me' from my email address
> N6TAY, PP-ASEL
> See the Geezer Jeep at
> http://members.***.net/jerrypb/
>
> "Jerry Bransford" <jerrypb@mecox.net> wrote in message
> news:kriAc.9246$ey.3907@fed1read06...
>
>>Tommy, Caster angle isn't super critical but 2.5 degrees is clearly way
>>under what it needs. I would try four turns of your control arms
>>(lengthening the lower arms) and see how it feels. Just do the same
>
> number
>
>>of turns on each arm and it'll work fine. :)
>>
>>Jerry
>>--
>>Jerry Bransford
>>To email, remove 'me' from my email address
>>N6TAY, PP-ASEL
>>See the Geezer Jeep at
>>http://members.***.net/jerrypb/
>>
>>"twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
>>news:aIhAc.1298$Q77.901@newssvr23.news.prodigy.c om...
>>
>>>Right. However the last tech wouldn't go past 2.5deg. saying that the
>>>DShaft has priority. I'm still not happy with the steering. Can I
>>>ballpark the caster measurement? I know that the last alignment gave me
>>>roughly 2.5 deg., so to get to 5.5 deg. I'll have to shorten the RE
>>>upper control arms, but I'm not sure how far. I don't have the equipt.
>>>to measure caster, obviously, but another $80 alignment isn't that
>>>appealing either. Since I know where it is now (2.5), can I shorten each
>>>arm, equally, to acheive a better caster angle and how many turns would
>>>I attempt?
>>>
>>>Jerry Bransford wrote:
>>>
>>>
>>>>7 degrees is the factory specified Caster angle for a Wrangler. If
>
> you
>
>>try
>>
>>>>to keep 7 degrees with 4.5" of lift, you do get front driveshaft
>>
>>vibration
>>
>>>>due to excessive pinion angle. But 5.5 to 6 degrees is entirely
>>
>>appropriate
>>
>>>>and works well. It's the standard recommended Caster angle when you
>
> get
>
>>to
>>
>>>>4-5" of lift which won't cause any front driveshaft
>
> problems/vibrations
>
>>but
>>
>>>>it does give you enough Caster angle to give good steering qualities.
>>
>>My
>>
>>>>own TJ is set to nearly six degrees and that worked very well with my
>>
>>5.5"
>>
>>>>of suspension lift. It's when you try to get too close to the factory
>
> 7
>
>>>>degree angle after installing a tall lift when the front pinion angle
>>>>becomes excessive for the front driveshaft and u-joint.
>>>>
>>>>Jerry
>>>>--
>>>>Jerry Bransford
>>>>To email, remove 'me' from my email address
>>>>N6TAY, PP-ASEL
>>>>See the Geezer Jeep at
>>>>http://members.***.net/jerrypb/
>>>>
>>>>"twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
>>>>news:p_9Ac.1264$Q77.115@newssvr23.news.prodigy .com...
>>>>
>>>>
>>>>>How do you get -5.5 deg. without putting your front propeller shaft
>
> out
>
>>>>>of line? Mine is at -2.5 on a 4.5" lift.
>>>>>
>>>>>Jerry Bransford wrote:
>>>>>
>>>>>
>>>>>
>>>>>>Caster angle shouldn't even be below 5.5 degrees, let alone zero.
>
> For
>
>>a
>>
>>>>2"
>>>>
>>>>
>>>>>>lift, Caster should actually be between 6 and 7 degrees of Caster
>>
>>angle.
>>
>>>>>>Are you thinking toe-in?
>>>>>>
>>>>>>Jerry
>>>>>
>>>>>
>>>>>--
>>>>>_____________________________________________ ______________
>>>>>tw
>>>>>
>>>>>03 TJ Rubicon - Rubicon Express 4.5"
>>>>>01 XJ Sport
>>>>>
>>>>>There is a very fine line between "hobby" and "mental illness."
>>>>>-- Dave Barry
>>>>>
>>>>>Pronunciation: 'jEp
>>>>>Function: noun
>>>>>Date: 1940
>>>>>
>>>>>Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
>>>>>A small general-purpose motor vehicle with 80-inch wheelbase,
>>>>>1/4-ton capacity, and four-wheel drive used by the U.S. army in
>>>>>World War II.
>>>>>
>>>>>(Please remove the OBVIOUS to reply by email)
>>>>>_____________________________________________ ______________
>>>>>
>>>>
>>>>
>>>>
>>>--
>>>_______________________________________________ ____________
>>>tw
>>>
>>>03 TJ Rubicon - Rubicon Express 4.5"
>>>01 XJ Sport
>>>
>>>There is a very fine line between "hobby" and "mental illness."
>>>-- Dave Barry
>>>
>>>Pronunciation: 'jEp
>>>Function: noun
>>>Date: 1940
>>>
>>>Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
>>>A small general-purpose motor vehicle with 80-inch wheelbase,
>>>1/4-ton capacity, and four-wheel drive used by the U.S. army in
>>>World War II.
>>>
>>>(Please remove the OBVIOUS to reply by email)
>>>_______________________________________________ ____________
>>>
>>
>>
>
>
--
__________________________________________________ _________
tw
03 TJ Rubicon - Rubicon Express 4.5"
01 XJ Sport
There is a very fine line between "hobby" and "mental illness."
-- Dave Barry
Pronunciation: 'jEp
Function: noun
Date: 1940
Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
A small general-purpose motor vehicle with 80-inch wheelbase,
1/4-ton capacity, and four-wheel drive used by the U.S. army in
World War II.
(Please remove the OBVIOUS to reply by email)
__________________________________________________ _________
#40
Guest
Posts: n/a
Re: Wobble (whoops)
That's what I needed to hear! ;) Thanks, Jerry!!
Jerry Bransford wrote:
> Tommy, of course you caught this but instead of lengthening your
> non-existent adjustable lower arms, shorten your upper arms by the same
> number of turns. I was at about 3.5 degrees before and 3 turns brought my
> caster up to where I needed it.
>
> And the tech was correct that the driveshaft has priority but he was
> clueless on limiting the Caster angle to only 2.5 degrees since the Caster
> can usually be increased well beyond that, to around 5.5 to 6 degrees,
> before the pinion angle becomes excessive for a 4 or 4.5" lift.
>
> Jerry
> --
> Jerry Bransford
> To email, remove 'me' from my email address
> N6TAY, PP-ASEL
> See the Geezer Jeep at
> http://members.***.net/jerrypb/
>
> "Jerry Bransford" <jerrypb@mecox.net> wrote in message
> news:kriAc.9246$ey.3907@fed1read06...
>
>>Tommy, Caster angle isn't super critical but 2.5 degrees is clearly way
>>under what it needs. I would try four turns of your control arms
>>(lengthening the lower arms) and see how it feels. Just do the same
>
> number
>
>>of turns on each arm and it'll work fine. :)
>>
>>Jerry
>>--
>>Jerry Bransford
>>To email, remove 'me' from my email address
>>N6TAY, PP-ASEL
>>See the Geezer Jeep at
>>http://members.***.net/jerrypb/
>>
>>"twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
>>news:aIhAc.1298$Q77.901@newssvr23.news.prodigy.c om...
>>
>>>Right. However the last tech wouldn't go past 2.5deg. saying that the
>>>DShaft has priority. I'm still not happy with the steering. Can I
>>>ballpark the caster measurement? I know that the last alignment gave me
>>>roughly 2.5 deg., so to get to 5.5 deg. I'll have to shorten the RE
>>>upper control arms, but I'm not sure how far. I don't have the equipt.
>>>to measure caster, obviously, but another $80 alignment isn't that
>>>appealing either. Since I know where it is now (2.5), can I shorten each
>>>arm, equally, to acheive a better caster angle and how many turns would
>>>I attempt?
>>>
>>>Jerry Bransford wrote:
>>>
>>>
>>>>7 degrees is the factory specified Caster angle for a Wrangler. If
>
> you
>
>>try
>>
>>>>to keep 7 degrees with 4.5" of lift, you do get front driveshaft
>>
>>vibration
>>
>>>>due to excessive pinion angle. But 5.5 to 6 degrees is entirely
>>
>>appropriate
>>
>>>>and works well. It's the standard recommended Caster angle when you
>
> get
>
>>to
>>
>>>>4-5" of lift which won't cause any front driveshaft
>
> problems/vibrations
>
>>but
>>
>>>>it does give you enough Caster angle to give good steering qualities.
>>
>>My
>>
>>>>own TJ is set to nearly six degrees and that worked very well with my
>>
>>5.5"
>>
>>>>of suspension lift. It's when you try to get too close to the factory
>
> 7
>
>>>>degree angle after installing a tall lift when the front pinion angle
>>>>becomes excessive for the front driveshaft and u-joint.
>>>>
>>>>Jerry
>>>>--
>>>>Jerry Bransford
>>>>To email, remove 'me' from my email address
>>>>N6TAY, PP-ASEL
>>>>See the Geezer Jeep at
>>>>http://members.***.net/jerrypb/
>>>>
>>>>"twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
>>>>news:p_9Ac.1264$Q77.115@newssvr23.news.prodigy .com...
>>>>
>>>>
>>>>>How do you get -5.5 deg. without putting your front propeller shaft
>
> out
>
>>>>>of line? Mine is at -2.5 on a 4.5" lift.
>>>>>
>>>>>Jerry Bransford wrote:
>>>>>
>>>>>
>>>>>
>>>>>>Caster angle shouldn't even be below 5.5 degrees, let alone zero.
>
> For
>
>>a
>>
>>>>2"
>>>>
>>>>
>>>>>>lift, Caster should actually be between 6 and 7 degrees of Caster
>>
>>angle.
>>
>>>>>>Are you thinking toe-in?
>>>>>>
>>>>>>Jerry
>>>>>
>>>>>
>>>>>--
>>>>>_____________________________________________ ______________
>>>>>tw
>>>>>
>>>>>03 TJ Rubicon - Rubicon Express 4.5"
>>>>>01 XJ Sport
>>>>>
>>>>>There is a very fine line between "hobby" and "mental illness."
>>>>>-- Dave Barry
>>>>>
>>>>>Pronunciation: 'jEp
>>>>>Function: noun
>>>>>Date: 1940
>>>>>
>>>>>Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
>>>>>A small general-purpose motor vehicle with 80-inch wheelbase,
>>>>>1/4-ton capacity, and four-wheel drive used by the U.S. army in
>>>>>World War II.
>>>>>
>>>>>(Please remove the OBVIOUS to reply by email)
>>>>>_____________________________________________ ______________
>>>>>
>>>>
>>>>
>>>>
>>>--
>>>_______________________________________________ ____________
>>>tw
>>>
>>>03 TJ Rubicon - Rubicon Express 4.5"
>>>01 XJ Sport
>>>
>>>There is a very fine line between "hobby" and "mental illness."
>>>-- Dave Barry
>>>
>>>Pronunciation: 'jEp
>>>Function: noun
>>>Date: 1940
>>>
>>>Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
>>>A small general-purpose motor vehicle with 80-inch wheelbase,
>>>1/4-ton capacity, and four-wheel drive used by the U.S. army in
>>>World War II.
>>>
>>>(Please remove the OBVIOUS to reply by email)
>>>_______________________________________________ ____________
>>>
>>
>>
>
>
--
__________________________________________________ _________
tw
03 TJ Rubicon - Rubicon Express 4.5"
01 XJ Sport
There is a very fine line between "hobby" and "mental illness."
-- Dave Barry
Pronunciation: 'jEp
Function: noun
Date: 1940
Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
A small general-purpose motor vehicle with 80-inch wheelbase,
1/4-ton capacity, and four-wheel drive used by the U.S. army in
World War II.
(Please remove the OBVIOUS to reply by email)
__________________________________________________ _________
Jerry Bransford wrote:
> Tommy, of course you caught this but instead of lengthening your
> non-existent adjustable lower arms, shorten your upper arms by the same
> number of turns. I was at about 3.5 degrees before and 3 turns brought my
> caster up to where I needed it.
>
> And the tech was correct that the driveshaft has priority but he was
> clueless on limiting the Caster angle to only 2.5 degrees since the Caster
> can usually be increased well beyond that, to around 5.5 to 6 degrees,
> before the pinion angle becomes excessive for a 4 or 4.5" lift.
>
> Jerry
> --
> Jerry Bransford
> To email, remove 'me' from my email address
> N6TAY, PP-ASEL
> See the Geezer Jeep at
> http://members.***.net/jerrypb/
>
> "Jerry Bransford" <jerrypb@mecox.net> wrote in message
> news:kriAc.9246$ey.3907@fed1read06...
>
>>Tommy, Caster angle isn't super critical but 2.5 degrees is clearly way
>>under what it needs. I would try four turns of your control arms
>>(lengthening the lower arms) and see how it feels. Just do the same
>
> number
>
>>of turns on each arm and it'll work fine. :)
>>
>>Jerry
>>--
>>Jerry Bransford
>>To email, remove 'me' from my email address
>>N6TAY, PP-ASEL
>>See the Geezer Jeep at
>>http://members.***.net/jerrypb/
>>
>>"twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
>>news:aIhAc.1298$Q77.901@newssvr23.news.prodigy.c om...
>>
>>>Right. However the last tech wouldn't go past 2.5deg. saying that the
>>>DShaft has priority. I'm still not happy with the steering. Can I
>>>ballpark the caster measurement? I know that the last alignment gave me
>>>roughly 2.5 deg., so to get to 5.5 deg. I'll have to shorten the RE
>>>upper control arms, but I'm not sure how far. I don't have the equipt.
>>>to measure caster, obviously, but another $80 alignment isn't that
>>>appealing either. Since I know where it is now (2.5), can I shorten each
>>>arm, equally, to acheive a better caster angle and how many turns would
>>>I attempt?
>>>
>>>Jerry Bransford wrote:
>>>
>>>
>>>>7 degrees is the factory specified Caster angle for a Wrangler. If
>
> you
>
>>try
>>
>>>>to keep 7 degrees with 4.5" of lift, you do get front driveshaft
>>
>>vibration
>>
>>>>due to excessive pinion angle. But 5.5 to 6 degrees is entirely
>>
>>appropriate
>>
>>>>and works well. It's the standard recommended Caster angle when you
>
> get
>
>>to
>>
>>>>4-5" of lift which won't cause any front driveshaft
>
> problems/vibrations
>
>>but
>>
>>>>it does give you enough Caster angle to give good steering qualities.
>>
>>My
>>
>>>>own TJ is set to nearly six degrees and that worked very well with my
>>
>>5.5"
>>
>>>>of suspension lift. It's when you try to get too close to the factory
>
> 7
>
>>>>degree angle after installing a tall lift when the front pinion angle
>>>>becomes excessive for the front driveshaft and u-joint.
>>>>
>>>>Jerry
>>>>--
>>>>Jerry Bransford
>>>>To email, remove 'me' from my email address
>>>>N6TAY, PP-ASEL
>>>>See the Geezer Jeep at
>>>>http://members.***.net/jerrypb/
>>>>
>>>>"twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
>>>>news:p_9Ac.1264$Q77.115@newssvr23.news.prodigy .com...
>>>>
>>>>
>>>>>How do you get -5.5 deg. without putting your front propeller shaft
>
> out
>
>>>>>of line? Mine is at -2.5 on a 4.5" lift.
>>>>>
>>>>>Jerry Bransford wrote:
>>>>>
>>>>>
>>>>>
>>>>>>Caster angle shouldn't even be below 5.5 degrees, let alone zero.
>
> For
>
>>a
>>
>>>>2"
>>>>
>>>>
>>>>>>lift, Caster should actually be between 6 and 7 degrees of Caster
>>
>>angle.
>>
>>>>>>Are you thinking toe-in?
>>>>>>
>>>>>>Jerry
>>>>>
>>>>>
>>>>>--
>>>>>_____________________________________________ ______________
>>>>>tw
>>>>>
>>>>>03 TJ Rubicon - Rubicon Express 4.5"
>>>>>01 XJ Sport
>>>>>
>>>>>There is a very fine line between "hobby" and "mental illness."
>>>>>-- Dave Barry
>>>>>
>>>>>Pronunciation: 'jEp
>>>>>Function: noun
>>>>>Date: 1940
>>>>>
>>>>>Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
>>>>>A small general-purpose motor vehicle with 80-inch wheelbase,
>>>>>1/4-ton capacity, and four-wheel drive used by the U.S. army in
>>>>>World War II.
>>>>>
>>>>>(Please remove the OBVIOUS to reply by email)
>>>>>_____________________________________________ ______________
>>>>>
>>>>
>>>>
>>>>
>>>--
>>>_______________________________________________ ____________
>>>tw
>>>
>>>03 TJ Rubicon - Rubicon Express 4.5"
>>>01 XJ Sport
>>>
>>>There is a very fine line between "hobby" and "mental illness."
>>>-- Dave Barry
>>>
>>>Pronunciation: 'jEp
>>>Function: noun
>>>Date: 1940
>>>
>>>Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
>>>A small general-purpose motor vehicle with 80-inch wheelbase,
>>>1/4-ton capacity, and four-wheel drive used by the U.S. army in
>>>World War II.
>>>
>>>(Please remove the OBVIOUS to reply by email)
>>>_______________________________________________ ____________
>>>
>>
>>
>
>
--
__________________________________________________ _________
tw
03 TJ Rubicon - Rubicon Express 4.5"
01 XJ Sport
There is a very fine line between "hobby" and "mental illness."
-- Dave Barry
Pronunciation: 'jEp
Function: noun
Date: 1940
Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
A small general-purpose motor vehicle with 80-inch wheelbase,
1/4-ton capacity, and four-wheel drive used by the U.S. army in
World War II.
(Please remove the OBVIOUS to reply by email)
__________________________________________________ _________