Lift & Driveline problems
12-30-2003, 12:12 PM
#1
Guest
Posts: n/a
Lift & Driveline problems
I have an 03 TJ Rubicon, and will put in a 2" Old Man Emu suspension
lift and also run 1.5" engine lift (and body) to fit a high clearance
skidplate. What driveline problems should I expect, what do I need to
buy in advance to fix the problems, how do I fix it, and will I need
to have custom driveshafts made?
Thanks for your time and help,
Andrew Whitley
lift and also run 1.5" engine lift (and body) to fit a high clearance
skidplate. What driveline problems should I expect, what do I need to
buy in advance to fix the problems, how do I fix it, and will I need
to have custom driveshafts made?
Thanks for your time and help,
Andrew Whitley
12-30-2003, 12:44 PM
#2
Guest
Posts: n/a
Re: Lift & Driveline problems
Your driveshaft length will be fine with that height lift. With a 2"
suspension lift, it's common that the transfer case may have to be dropped a
little to eliminate vibrations... but that you're installing a 1.5" engine
lift will eliminate that need. Lifting the engine at the front works the
same as dropping the t-case a little to reduce the angles that can cause
drivetrain vibrations. You should be perfectly fine with that combination.
Jerry
--
Jerry Bransford
To email, remove 'me' from my email address
KC6TAY, PP-ASEL
See the Geezer Jeep at
http://members.***.net/jerrypb/
"Andrew" <andrewmuaddib@hotmail.com> wrote in message
news:8b5c891c.0312300912.1638c86c@posting.google.c om...
> I have an 03 TJ Rubicon, and will put in a 2" Old Man Emu suspension
> lift and also run 1.5" engine lift (and body) to fit a high clearance
> skidplate. What driveline problems should I expect, what do I need to
> buy in advance to fix the problems, how do I fix it, and will I need
> to have custom driveshafts made?
>
> Thanks for your time and help,
>
> Andrew Whitley
suspension lift, it's common that the transfer case may have to be dropped a
little to eliminate vibrations... but that you're installing a 1.5" engine
lift will eliminate that need. Lifting the engine at the front works the
same as dropping the t-case a little to reduce the angles that can cause
drivetrain vibrations. You should be perfectly fine with that combination.
Jerry
--
Jerry Bransford
To email, remove 'me' from my email address
KC6TAY, PP-ASEL
See the Geezer Jeep at
http://members.***.net/jerrypb/
"Andrew" <andrewmuaddib@hotmail.com> wrote in message
news:8b5c891c.0312300912.1638c86c@posting.google.c om...
> I have an 03 TJ Rubicon, and will put in a 2" Old Man Emu suspension
> lift and also run 1.5" engine lift (and body) to fit a high clearance
> skidplate. What driveline problems should I expect, what do I need to
> buy in advance to fix the problems, how do I fix it, and will I need
> to have custom driveshafts made?
>
> Thanks for your time and help,
>
> Andrew Whitley
12-30-2003, 12:44 PM
#3
Guest
Posts: n/a
Re: Lift & Driveline problems
Your driveshaft length will be fine with that height lift. With a 2"
suspension lift, it's common that the transfer case may have to be dropped a
little to eliminate vibrations... but that you're installing a 1.5" engine
lift will eliminate that need. Lifting the engine at the front works the
same as dropping the t-case a little to reduce the angles that can cause
drivetrain vibrations. You should be perfectly fine with that combination.
Jerry
--
Jerry Bransford
To email, remove 'me' from my email address
KC6TAY, PP-ASEL
See the Geezer Jeep at
http://members.***.net/jerrypb/
"Andrew" <andrewmuaddib@hotmail.com> wrote in message
news:8b5c891c.0312300912.1638c86c@posting.google.c om...
> I have an 03 TJ Rubicon, and will put in a 2" Old Man Emu suspension
> lift and also run 1.5" engine lift (and body) to fit a high clearance
> skidplate. What driveline problems should I expect, what do I need to
> buy in advance to fix the problems, how do I fix it, and will I need
> to have custom driveshafts made?
>
> Thanks for your time and help,
>
> Andrew Whitley
suspension lift, it's common that the transfer case may have to be dropped a
little to eliminate vibrations... but that you're installing a 1.5" engine
lift will eliminate that need. Lifting the engine at the front works the
same as dropping the t-case a little to reduce the angles that can cause
drivetrain vibrations. You should be perfectly fine with that combination.
Jerry
--
Jerry Bransford
To email, remove 'me' from my email address
KC6TAY, PP-ASEL
See the Geezer Jeep at
http://members.***.net/jerrypb/
"Andrew" <andrewmuaddib@hotmail.com> wrote in message
news:8b5c891c.0312300912.1638c86c@posting.google.c om...
> I have an 03 TJ Rubicon, and will put in a 2" Old Man Emu suspension
> lift and also run 1.5" engine lift (and body) to fit a high clearance
> skidplate. What driveline problems should I expect, what do I need to
> buy in advance to fix the problems, how do I fix it, and will I need
> to have custom driveshafts made?
>
> Thanks for your time and help,
>
> Andrew Whitley
12-30-2003, 12:44 PM
#4
Guest
Posts: n/a
Re: Lift & Driveline problems
Your driveshaft length will be fine with that height lift. With a 2"
suspension lift, it's common that the transfer case may have to be dropped a
little to eliminate vibrations... but that you're installing a 1.5" engine
lift will eliminate that need. Lifting the engine at the front works the
same as dropping the t-case a little to reduce the angles that can cause
drivetrain vibrations. You should be perfectly fine with that combination.
Jerry
--
Jerry Bransford
To email, remove 'me' from my email address
KC6TAY, PP-ASEL
See the Geezer Jeep at
http://members.***.net/jerrypb/
"Andrew" <andrewmuaddib@hotmail.com> wrote in message
news:8b5c891c.0312300912.1638c86c@posting.google.c om...
> I have an 03 TJ Rubicon, and will put in a 2" Old Man Emu suspension
> lift and also run 1.5" engine lift (and body) to fit a high clearance
> skidplate. What driveline problems should I expect, what do I need to
> buy in advance to fix the problems, how do I fix it, and will I need
> to have custom driveshafts made?
>
> Thanks for your time and help,
>
> Andrew Whitley
suspension lift, it's common that the transfer case may have to be dropped a
little to eliminate vibrations... but that you're installing a 1.5" engine
lift will eliminate that need. Lifting the engine at the front works the
same as dropping the t-case a little to reduce the angles that can cause
drivetrain vibrations. You should be perfectly fine with that combination.
Jerry
--
Jerry Bransford
To email, remove 'me' from my email address
KC6TAY, PP-ASEL
See the Geezer Jeep at
http://members.***.net/jerrypb/
"Andrew" <andrewmuaddib@hotmail.com> wrote in message
news:8b5c891c.0312300912.1638c86c@posting.google.c om...
> I have an 03 TJ Rubicon, and will put in a 2" Old Man Emu suspension
> lift and also run 1.5" engine lift (and body) to fit a high clearance
> skidplate. What driveline problems should I expect, what do I need to
> buy in advance to fix the problems, how do I fix it, and will I need
> to have custom driveshafts made?
>
> Thanks for your time and help,
>
> Andrew Whitley
12-30-2003, 01:14 PM
#5
Guest
Posts: n/a
Re: Lift & Driveline problems
I don't have a Rubicon but there are two possible issues. The NP242 on
the Rubicon has a fixed yoke rear output already so the 'usual'
slip-yoke induced vibration problems on the NP241 wouldn't become an issue.
The first 'maybe' is driveshaft length. With the t-case and suspesion
lifts you might over-extend it if you fully articulate the rear. I'm
sure it would be fine on the road, but under full articulation on the
trail it could have insufficient contact in the slip joint which might
damage it under high torque (or even cause it to fall out!)
Second, it is possible that the increased angle of the u-joints with the
lift could be too large for them to operate correctly. They could break
if the angle is too large (again- under full articulation.) You might
need a double-cardan CV shaft or a special high-angle shaft.
Do your lifts and jack up the back. See how things look and decide from
there. But don't take it off-road until you check it out or someone with
more knowledge then I gives you a better answer!
Andrew wrote:
> I have an 03 TJ Rubicon, and will put in a 2" Old Man Emu suspension
> lift and also run 1.5" engine lift (and body) to fit a high clearance
> skidplate. What driveline problems should I expect, what do I need to
> buy in advance to fix the problems, how do I fix it, and will I need
> to have custom driveshafts made?
>
> Thanks for your time and help,
>
> Andrew Whitley
the Rubicon has a fixed yoke rear output already so the 'usual'
slip-yoke induced vibration problems on the NP241 wouldn't become an issue.
The first 'maybe' is driveshaft length. With the t-case and suspesion
lifts you might over-extend it if you fully articulate the rear. I'm
sure it would be fine on the road, but under full articulation on the
trail it could have insufficient contact in the slip joint which might
damage it under high torque (or even cause it to fall out!)
Second, it is possible that the increased angle of the u-joints with the
lift could be too large for them to operate correctly. They could break
if the angle is too large (again- under full articulation.) You might
need a double-cardan CV shaft or a special high-angle shaft.
Do your lifts and jack up the back. See how things look and decide from
there. But don't take it off-road until you check it out or someone with
more knowledge then I gives you a better answer!
Andrew wrote:
> I have an 03 TJ Rubicon, and will put in a 2" Old Man Emu suspension
> lift and also run 1.5" engine lift (and body) to fit a high clearance
> skidplate. What driveline problems should I expect, what do I need to
> buy in advance to fix the problems, how do I fix it, and will I need
> to have custom driveshafts made?
>
> Thanks for your time and help,
>
> Andrew Whitley
12-30-2003, 01:14 PM
#6
Guest
Posts: n/a
Re: Lift & Driveline problems
I don't have a Rubicon but there are two possible issues. The NP242 on
the Rubicon has a fixed yoke rear output already so the 'usual'
slip-yoke induced vibration problems on the NP241 wouldn't become an issue.
The first 'maybe' is driveshaft length. With the t-case and suspesion
lifts you might over-extend it if you fully articulate the rear. I'm
sure it would be fine on the road, but under full articulation on the
trail it could have insufficient contact in the slip joint which might
damage it under high torque (or even cause it to fall out!)
Second, it is possible that the increased angle of the u-joints with the
lift could be too large for them to operate correctly. They could break
if the angle is too large (again- under full articulation.) You might
need a double-cardan CV shaft or a special high-angle shaft.
Do your lifts and jack up the back. See how things look and decide from
there. But don't take it off-road until you check it out or someone with
more knowledge then I gives you a better answer!
Andrew wrote:
> I have an 03 TJ Rubicon, and will put in a 2" Old Man Emu suspension
> lift and also run 1.5" engine lift (and body) to fit a high clearance
> skidplate. What driveline problems should I expect, what do I need to
> buy in advance to fix the problems, how do I fix it, and will I need
> to have custom driveshafts made?
>
> Thanks for your time and help,
>
> Andrew Whitley
the Rubicon has a fixed yoke rear output already so the 'usual'
slip-yoke induced vibration problems on the NP241 wouldn't become an issue.
The first 'maybe' is driveshaft length. With the t-case and suspesion
lifts you might over-extend it if you fully articulate the rear. I'm
sure it would be fine on the road, but under full articulation on the
trail it could have insufficient contact in the slip joint which might
damage it under high torque (or even cause it to fall out!)
Second, it is possible that the increased angle of the u-joints with the
lift could be too large for them to operate correctly. They could break
if the angle is too large (again- under full articulation.) You might
need a double-cardan CV shaft or a special high-angle shaft.
Do your lifts and jack up the back. See how things look and decide from
there. But don't take it off-road until you check it out or someone with
more knowledge then I gives you a better answer!
Andrew wrote:
> I have an 03 TJ Rubicon, and will put in a 2" Old Man Emu suspension
> lift and also run 1.5" engine lift (and body) to fit a high clearance
> skidplate. What driveline problems should I expect, what do I need to
> buy in advance to fix the problems, how do I fix it, and will I need
> to have custom driveshafts made?
>
> Thanks for your time and help,
>
> Andrew Whitley
12-30-2003, 01:14 PM
#7
Guest
Posts: n/a
Re: Lift & Driveline problems
I don't have a Rubicon but there are two possible issues. The NP242 on
the Rubicon has a fixed yoke rear output already so the 'usual'
slip-yoke induced vibration problems on the NP241 wouldn't become an issue.
The first 'maybe' is driveshaft length. With the t-case and suspesion
lifts you might over-extend it if you fully articulate the rear. I'm
sure it would be fine on the road, but under full articulation on the
trail it could have insufficient contact in the slip joint which might
damage it under high torque (or even cause it to fall out!)
Second, it is possible that the increased angle of the u-joints with the
lift could be too large for them to operate correctly. They could break
if the angle is too large (again- under full articulation.) You might
need a double-cardan CV shaft or a special high-angle shaft.
Do your lifts and jack up the back. See how things look and decide from
there. But don't take it off-road until you check it out or someone with
more knowledge then I gives you a better answer!
Andrew wrote:
> I have an 03 TJ Rubicon, and will put in a 2" Old Man Emu suspension
> lift and also run 1.5" engine lift (and body) to fit a high clearance
> skidplate. What driveline problems should I expect, what do I need to
> buy in advance to fix the problems, how do I fix it, and will I need
> to have custom driveshafts made?
>
> Thanks for your time and help,
>
> Andrew Whitley
the Rubicon has a fixed yoke rear output already so the 'usual'
slip-yoke induced vibration problems on the NP241 wouldn't become an issue.
The first 'maybe' is driveshaft length. With the t-case and suspesion
lifts you might over-extend it if you fully articulate the rear. I'm
sure it would be fine on the road, but under full articulation on the
trail it could have insufficient contact in the slip joint which might
damage it under high torque (or even cause it to fall out!)
Second, it is possible that the increased angle of the u-joints with the
lift could be too large for them to operate correctly. They could break
if the angle is too large (again- under full articulation.) You might
need a double-cardan CV shaft or a special high-angle shaft.
Do your lifts and jack up the back. See how things look and decide from
there. But don't take it off-road until you check it out or someone with
more knowledge then I gives you a better answer!
Andrew wrote:
> I have an 03 TJ Rubicon, and will put in a 2" Old Man Emu suspension
> lift and also run 1.5" engine lift (and body) to fit a high clearance
> skidplate. What driveline problems should I expect, what do I need to
> buy in advance to fix the problems, how do I fix it, and will I need
> to have custom driveshafts made?
>
> Thanks for your time and help,
>
> Andrew Whitley
12-30-2003, 01:46 PM
#8
Guest
Posts: n/a
Re: Lift & Driveline problems
Always plan on having vibe problems, but celebrate if you don't. Most
people who lift TJs only 2" don't have driveline vibes, but there are
those that do. Your addition of the motor mount lift will probably
almost negate the affect of the new suspension lift as far as vibes go.
Also, adjustable control arms are a very effective way to eliminate vibes.
On the other hand, Tom Woods makes a nice driveshaft kit for the Rubis.
I have one on mine and am happy with it so far.
Andrew wrote:
> I have an 03 TJ Rubicon, and will put in a 2" Old Man Emu suspension
> lift and also run 1.5" engine lift (and body) to fit a high clearance
> skidplate. What driveline problems should I expect, what do I need to
> buy in advance to fix the problems, how do I fix it, and will I need
> to have custom driveshafts made?
>
> Thanks for your time and help,
>
> Andrew Whitley
--
__________________________________________________ _________
tw
03 TJ Rubicon
01 XJ Sport
There is a very fine line between "hobby" and "mental illness."
-- Dave Barry
Pronunciation: 'jEp
Function: noun
Date: 1940
Etymology: probably from g. p. (abbreviation of general purpose)
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.
http://www.7slotgrille.com/jeepers/t...ron/index.html
(Please remove the OBVIOUS to reply by email)
__________________________________________________ _________
people who lift TJs only 2" don't have driveline vibes, but there are
those that do. Your addition of the motor mount lift will probably
almost negate the affect of the new suspension lift as far as vibes go.
Also, adjustable control arms are a very effective way to eliminate vibes.
On the other hand, Tom Woods makes a nice driveshaft kit for the Rubis.
I have one on mine and am happy with it so far.
Andrew wrote:
> I have an 03 TJ Rubicon, and will put in a 2" Old Man Emu suspension
> lift and also run 1.5" engine lift (and body) to fit a high clearance
> skidplate. What driveline problems should I expect, what do I need to
> buy in advance to fix the problems, how do I fix it, and will I need
> to have custom driveshafts made?
>
> Thanks for your time and help,
>
> Andrew Whitley
--
__________________________________________________ _________
tw
03 TJ Rubicon
01 XJ Sport
There is a very fine line between "hobby" and "mental illness."
-- Dave Barry
Pronunciation: 'jEp
Function: noun
Date: 1940
Etymology: probably from g. p. (abbreviation of general purpose)
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.
http://www.7slotgrille.com/jeepers/t...ron/index.html
(Please remove the OBVIOUS to reply by email)
__________________________________________________ _________
12-30-2003, 01:46 PM
#9
Guest
Posts: n/a
Re: Lift & Driveline problems
Always plan on having vibe problems, but celebrate if you don't. Most
people who lift TJs only 2" don't have driveline vibes, but there are
those that do. Your addition of the motor mount lift will probably
almost negate the affect of the new suspension lift as far as vibes go.
Also, adjustable control arms are a very effective way to eliminate vibes.
On the other hand, Tom Woods makes a nice driveshaft kit for the Rubis.
I have one on mine and am happy with it so far.
Andrew wrote:
> I have an 03 TJ Rubicon, and will put in a 2" Old Man Emu suspension
> lift and also run 1.5" engine lift (and body) to fit a high clearance
> skidplate. What driveline problems should I expect, what do I need to
> buy in advance to fix the problems, how do I fix it, and will I need
> to have custom driveshafts made?
>
> Thanks for your time and help,
>
> Andrew Whitley
--
__________________________________________________ _________
tw
03 TJ Rubicon
01 XJ Sport
There is a very fine line between "hobby" and "mental illness."
-- Dave Barry
Pronunciation: 'jEp
Function: noun
Date: 1940
Etymology: probably from g. p. (abbreviation of general purpose)
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.
http://www.7slotgrille.com/jeepers/t...ron/index.html
(Please remove the OBVIOUS to reply by email)
__________________________________________________ _________
people who lift TJs only 2" don't have driveline vibes, but there are
those that do. Your addition of the motor mount lift will probably
almost negate the affect of the new suspension lift as far as vibes go.
Also, adjustable control arms are a very effective way to eliminate vibes.
On the other hand, Tom Woods makes a nice driveshaft kit for the Rubis.
I have one on mine and am happy with it so far.
Andrew wrote:
> I have an 03 TJ Rubicon, and will put in a 2" Old Man Emu suspension
> lift and also run 1.5" engine lift (and body) to fit a high clearance
> skidplate. What driveline problems should I expect, what do I need to
> buy in advance to fix the problems, how do I fix it, and will I need
> to have custom driveshafts made?
>
> Thanks for your time and help,
>
> Andrew Whitley
--
__________________________________________________ _________
tw
03 TJ Rubicon
01 XJ Sport
There is a very fine line between "hobby" and "mental illness."
-- Dave Barry
Pronunciation: 'jEp
Function: noun
Date: 1940
Etymology: probably from g. p. (abbreviation of general purpose)
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.
http://www.7slotgrille.com/jeepers/t...ron/index.html
(Please remove the OBVIOUS to reply by email)
__________________________________________________ _________
12-30-2003, 01:46 PM
#10
Guest
Posts: n/a
Re: Lift & Driveline problems
Always plan on having vibe problems, but celebrate if you don't. Most
people who lift TJs only 2" don't have driveline vibes, but there are
those that do. Your addition of the motor mount lift will probably
almost negate the affect of the new suspension lift as far as vibes go.
Also, adjustable control arms are a very effective way to eliminate vibes.
On the other hand, Tom Woods makes a nice driveshaft kit for the Rubis.
I have one on mine and am happy with it so far.
Andrew wrote:
> I have an 03 TJ Rubicon, and will put in a 2" Old Man Emu suspension
> lift and also run 1.5" engine lift (and body) to fit a high clearance
> skidplate. What driveline problems should I expect, what do I need to
> buy in advance to fix the problems, how do I fix it, and will I need
> to have custom driveshafts made?
>
> Thanks for your time and help,
>
> Andrew Whitley
--
__________________________________________________ _________
tw
03 TJ Rubicon
01 XJ Sport
There is a very fine line between "hobby" and "mental illness."
-- Dave Barry
Pronunciation: 'jEp
Function: noun
Date: 1940
Etymology: probably from g. p. (abbreviation of general purpose)
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.
http://www.7slotgrille.com/jeepers/t...ron/index.html
(Please remove the OBVIOUS to reply by email)
__________________________________________________ _________
people who lift TJs only 2" don't have driveline vibes, but there are
those that do. Your addition of the motor mount lift will probably
almost negate the affect of the new suspension lift as far as vibes go.
Also, adjustable control arms are a very effective way to eliminate vibes.
On the other hand, Tom Woods makes a nice driveshaft kit for the Rubis.
I have one on mine and am happy with it so far.
Andrew wrote:
> I have an 03 TJ Rubicon, and will put in a 2" Old Man Emu suspension
> lift and also run 1.5" engine lift (and body) to fit a high clearance
> skidplate. What driveline problems should I expect, what do I need to
> buy in advance to fix the problems, how do I fix it, and will I need
> to have custom driveshafts made?
>
> Thanks for your time and help,
>
> Andrew Whitley
--
__________________________________________________ _________
tw
03 TJ Rubicon
01 XJ Sport
There is a very fine line between "hobby" and "mental illness."
-- Dave Barry
Pronunciation: 'jEp
Function: noun
Date: 1940
Etymology: probably from g. p. (abbreviation of general purpose)
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.
http://www.7slotgrille.com/jeepers/t...ron/index.html
(Please remove the OBVIOUS to reply by email)
__________________________________________________ _________