Re: Mysterious Driveline Vibration
 

So, what else could cause a vibration at higher road speeds?

/Peter

"Jerry Bransford" <jerrypb@cox.net> wrote in message
news:ohZ%c.78797$yh.12931@fed1read05...
> No more than one degree on a TJ. You only use more when there are leaf
> springs because axle wrap is a bigger problem for them.
>
> Jerry
> --
> Jerry Bransford
> PP-ASEL N6TAY
> See the Geezer Jeep at
> http://members.cox.net/jerrypb/
> "Peter Pontbriand" <sprocket@storm.ca.remove.me> wrote in message
> news:chph57$5h7$1@news.storm.ca...
> > You bet. Actually, the pinion is 1 degree lower than the shaft to cover
> > flexing of the rubber suspension link bushings while under cruising
load.
> > Maybe it should be more than 1 degree?
> >
> > /Peter
> >
> > ----- Original Message -----
> > From: "L.W. (ßill) ------ III" <----------@cox.net>
> > Newsgroups: rec.autos.makers.jeep+willys
> > Sent: Wednesday, September 08, 2004 10:39 PM
> > Subject: Re: Mysterious Driveline Vibration
> >
> >
> >> Hi Peter,
> >> Did you move the pinion angle up to point directly at the transfer
> >> yoke: http://www.4xshaft.com/driveline101.html
> >> God Bless America, ßill O|||||||O
> >> mailto:-------------------- http://www.----------.com/
> >>
> >> Peter Pontbriand wrote:
> >> >
> >> > I'm stumped. A while back my '02 TJ decided to start getting a pretty
> > bad
> >> > vibration from about 65 miles per hour on up. It doesn't matter what
> > gear I
> >> > am in or which set of tires I have on, its always related to road
> >> > speed.
> > If
> >> > I remove the rear driveshaft and drive in 4-hi, the vibration
> > disappears.
> >> > That suggests to me a problem with the driveshaft, yet all the
ujoints
> > and
> >> > the centering ball are fine, no balance weights are missing, and
> >> > there's
> > no
> >> > sign of any sort of damage. The pinion yoke and transfer case output
> > seem
> >> > fine as well, no discernable untoward movements there.
> >> >
> >> > What am I missing here? What could possibly be the source of this
> > vibration?
> >> >
> >> > /Peter
> >> > '02 TJ with AA SYE and Tom Woods drive shaft (among other things).
> >
> >
>
>

Re: Mysterious Driveline Vibration
 

So, what else could cause a vibration at higher road speeds?

/Peter

"Jerry Bransford" <jerrypb@cox.net> wrote in message
news:ohZ%c.78797$yh.12931@fed1read05...
> No more than one degree on a TJ. You only use more when there are leaf
> springs because axle wrap is a bigger problem for them.
>
> Jerry
> --
> Jerry Bransford
> PP-ASEL N6TAY
> See the Geezer Jeep at
> http://members.cox.net/jerrypb/
> "Peter Pontbriand" <sprocket@storm.ca.remove.me> wrote in message
> news:chph57$5h7$1@news.storm.ca...
> > You bet. Actually, the pinion is 1 degree lower than the shaft to cover
> > flexing of the rubber suspension link bushings while under cruising
load.
> > Maybe it should be more than 1 degree?
> >
> > /Peter
> >
> > ----- Original Message -----
> > From: "L.W. (ßill) ------ III" <----------@cox.net>
> > Newsgroups: rec.autos.makers.jeep+willys
> > Sent: Wednesday, September 08, 2004 10:39 PM
> > Subject: Re: Mysterious Driveline Vibration
> >
> >
> >> Hi Peter,
> >> Did you move the pinion angle up to point directly at the transfer
> >> yoke: http://www.4xshaft.com/driveline101.html
> >> God Bless America, ßill O|||||||O
> >> mailto:-------------------- http://www.----------.com/
> >>
> >> Peter Pontbriand wrote:
> >> >
> >> > I'm stumped. A while back my '02 TJ decided to start getting a pretty
> > bad
> >> > vibration from about 65 miles per hour on up. It doesn't matter what
> > gear I
> >> > am in or which set of tires I have on, its always related to road
> >> > speed.
> > If
> >> > I remove the rear driveshaft and drive in 4-hi, the vibration
> > disappears.
> >> > That suggests to me a problem with the driveshaft, yet all the
ujoints
> > and
> >> > the centering ball are fine, no balance weights are missing, and
> >> > there's
> > no
> >> > sign of any sort of damage. The pinion yoke and transfer case output
> > seem
> >> > fine as well, no discernable untoward movements there.
> >> >
> >> > What am I missing here? What could possibly be the source of this
> > vibration?
> >> >
> >> > /Peter
> >> > '02 TJ with AA SYE and Tom Woods drive shaft (among other things).
> >
> >
>
>

Re: Mysterious Driveline Vibration
 

So, what else could cause a vibration at higher road speeds?

/Peter

"Jerry Bransford" <jerrypb@cox.net> wrote in message
news:ohZ%c.78797$yh.12931@fed1read05...
> No more than one degree on a TJ. You only use more when there are leaf
> springs because axle wrap is a bigger problem for them.
>
> Jerry
> --
> Jerry Bransford
> PP-ASEL N6TAY
> See the Geezer Jeep at
> http://members.cox.net/jerrypb/
> "Peter Pontbriand" <sprocket@storm.ca.remove.me> wrote in message
> news:chph57$5h7$1@news.storm.ca...
> > You bet. Actually, the pinion is 1 degree lower than the shaft to cover
> > flexing of the rubber suspension link bushings while under cruising
load.
> > Maybe it should be more than 1 degree?
> >
> > /Peter
> >
> > ----- Original Message -----
> > From: "L.W. (ßill) ------ III" <----------@cox.net>
> > Newsgroups: rec.autos.makers.jeep+willys
> > Sent: Wednesday, September 08, 2004 10:39 PM
> > Subject: Re: Mysterious Driveline Vibration
> >
> >
> >> Hi Peter,
> >> Did you move the pinion angle up to point directly at the transfer
> >> yoke: http://www.4xshaft.com/driveline101.html
> >> God Bless America, ßill O|||||||O
> >> mailto:-------------------- http://www.----------.com/
> >>
> >> Peter Pontbriand wrote:
> >> >
> >> > I'm stumped. A while back my '02 TJ decided to start getting a pretty
> > bad
> >> > vibration from about 65 miles per hour on up. It doesn't matter what
> > gear I
> >> > am in or which set of tires I have on, its always related to road
> >> > speed.
> > If
> >> > I remove the rear driveshaft and drive in 4-hi, the vibration
> > disappears.
> >> > That suggests to me a problem with the driveshaft, yet all the
ujoints
> > and
> >> > the centering ball are fine, no balance weights are missing, and
> >> > there's
> > no
> >> > sign of any sort of damage. The pinion yoke and transfer case output
> > seem
> >> > fine as well, no discernable untoward movements there.
> >> >
> >> > What am I missing here? What could possibly be the source of this
> > vibration?
> >> >
> >> > /Peter
> >> > '02 TJ with AA SYE and Tom Woods drive shaft (among other things).
> >
> >
>
>

Re: Mysterious Driveline Vibration
 

Could your driveshaft be out of sync? Are the u-joints at the ends
lined up the same? For instance, if the clamp on the u-joint ear is
rotated up in the front, is the rear joint also sitting with the ear
clamp up?

If so, then my guess is the driveshaft is a bad one. There are shops
around that can balance them.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Peter Pontbriand wrote:
>
> So, what else could cause a vibration at higher road speeds?
>
> /Peter
>
> "Jerry Bransford" <jerrypb@cox.net> wrote in message
> news:ohZ%c.78797$yh.12931@fed1read05...
> > No more than one degree on a TJ. You only use more when there are leaf
> > springs because axle wrap is a bigger problem for them.
> >
> > Jerry
> > --
> > Jerry Bransford
> > PP-ASEL N6TAY
> > See the Geezer Jeep at
> > http://members.cox.net/jerrypb/
> > "Peter Pontbriand" <sprocket@storm.ca.remove.me> wrote in message
> > news:chph57$5h7$1@news.storm.ca...
> > > You bet. Actually, the pinion is 1 degree lower than the shaft to cover
> > > flexing of the rubber suspension link bushings while under cruising
> load.
> > > Maybe it should be more than 1 degree?
> > >
> > > /Peter
> > >
> > > ----- Original Message -----
> > > From: "L.W. (ßill) ------ III" <----------@cox.net>
> > > Newsgroups: rec.autos.makers.jeep+willys
> > > Sent: Wednesday, September 08, 2004 10:39 PM
> > > Subject: Re: Mysterious Driveline Vibration
> > >
> > >
> > >> Hi Peter,
> > >> Did you move the pinion angle up to point directly at the transfer
> > >> yoke: http://www.4xshaft.com/driveline101.html
> > >> God Bless America, ßill O|||||||O
> > >> mailto:-------------------- http://www.----------.com/
> > >>
> > >> Peter Pontbriand wrote:
> > >> >
> > >> > I'm stumped. A while back my '02 TJ decided to start getting a pretty
> > > bad
> > >> > vibration from about 65 miles per hour on up. It doesn't matter what
> > > gear I
> > >> > am in or which set of tires I have on, its always related to road
> > >> > speed.
> > > If
> > >> > I remove the rear driveshaft and drive in 4-hi, the vibration
> > > disappears.
> > >> > That suggests to me a problem with the driveshaft, yet all the
> ujoints
> > > and
> > >> > the centering ball are fine, no balance weights are missing, and
> > >> > there's
> > > no
> > >> > sign of any sort of damage. The pinion yoke and transfer case output
> > > seem
> > >> > fine as well, no discernable untoward movements there.
> > >> >
> > >> > What am I missing here? What could possibly be the source of this
> > > vibration?
> > >> >
> > >> > /Peter
> > >> > '02 TJ with AA SYE and Tom Woods drive shaft (among other things).
> > >
> > >
> >
> >

Re: Mysterious Driveline Vibration
 

Could your driveshaft be out of sync? Are the u-joints at the ends
lined up the same? For instance, if the clamp on the u-joint ear is
rotated up in the front, is the rear joint also sitting with the ear
clamp up?

If so, then my guess is the driveshaft is a bad one. There are shops
around that can balance them.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Peter Pontbriand wrote:
>
> So, what else could cause a vibration at higher road speeds?
>
> /Peter
>
> "Jerry Bransford" <jerrypb@cox.net> wrote in message
> news:ohZ%c.78797$yh.12931@fed1read05...
> > No more than one degree on a TJ. You only use more when there are leaf
> > springs because axle wrap is a bigger problem for them.
> >
> > Jerry
> > --
> > Jerry Bransford
> > PP-ASEL N6TAY
> > See the Geezer Jeep at
> > http://members.cox.net/jerrypb/
> > "Peter Pontbriand" <sprocket@storm.ca.remove.me> wrote in message
> > news:chph57$5h7$1@news.storm.ca...
> > > You bet. Actually, the pinion is 1 degree lower than the shaft to cover
> > > flexing of the rubber suspension link bushings while under cruising
> load.
> > > Maybe it should be more than 1 degree?
> > >
> > > /Peter
> > >
> > > ----- Original Message -----
> > > From: "L.W. (ßill) ------ III" <----------@cox.net>
> > > Newsgroups: rec.autos.makers.jeep+willys
> > > Sent: Wednesday, September 08, 2004 10:39 PM
> > > Subject: Re: Mysterious Driveline Vibration
> > >
> > >
> > >> Hi Peter,
> > >> Did you move the pinion angle up to point directly at the transfer
> > >> yoke: http://www.4xshaft.com/driveline101.html
> > >> God Bless America, ßill O|||||||O
> > >> mailto:-------------------- http://www.----------.com/
> > >>
> > >> Peter Pontbriand wrote:
> > >> >
> > >> > I'm stumped. A while back my '02 TJ decided to start getting a pretty
> > > bad
> > >> > vibration from about 65 miles per hour on up. It doesn't matter what
> > > gear I
> > >> > am in or which set of tires I have on, its always related to road
> > >> > speed.
> > > If
> > >> > I remove the rear driveshaft and drive in 4-hi, the vibration
> > > disappears.
> > >> > That suggests to me a problem with the driveshaft, yet all the
> ujoints
> > > and
> > >> > the centering ball are fine, no balance weights are missing, and
> > >> > there's
> > > no
> > >> > sign of any sort of damage. The pinion yoke and transfer case output
> > > seem
> > >> > fine as well, no discernable untoward movements there.
> > >> >
> > >> > What am I missing here? What could possibly be the source of this
> > > vibration?
> > >> >
> > >> > /Peter
> > >> > '02 TJ with AA SYE and Tom Woods drive shaft (among other things).
> > >
> > >
> >
> >

Re: Mysterious Driveline Vibration
 

Could your driveshaft be out of sync? Are the u-joints at the ends
lined up the same? For instance, if the clamp on the u-joint ear is
rotated up in the front, is the rear joint also sitting with the ear
clamp up?

If so, then my guess is the driveshaft is a bad one. There are shops
around that can balance them.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Peter Pontbriand wrote:
>
> So, what else could cause a vibration at higher road speeds?
>
> /Peter
>
> "Jerry Bransford" <jerrypb@cox.net> wrote in message
> news:ohZ%c.78797$yh.12931@fed1read05...
> > No more than one degree on a TJ. You only use more when there are leaf
> > springs because axle wrap is a bigger problem for them.
> >
> > Jerry
> > --
> > Jerry Bransford
> > PP-ASEL N6TAY
> > See the Geezer Jeep at
> > http://members.cox.net/jerrypb/
> > "Peter Pontbriand" <sprocket@storm.ca.remove.me> wrote in message
> > news:chph57$5h7$1@news.storm.ca...
> > > You bet. Actually, the pinion is 1 degree lower than the shaft to cover
> > > flexing of the rubber suspension link bushings while under cruising
> load.
> > > Maybe it should be more than 1 degree?
> > >
> > > /Peter
> > >
> > > ----- Original Message -----
> > > From: "L.W. (ßill) ------ III" <----------@cox.net>
> > > Newsgroups: rec.autos.makers.jeep+willys
> > > Sent: Wednesday, September 08, 2004 10:39 PM
> > > Subject: Re: Mysterious Driveline Vibration
> > >
> > >
> > >> Hi Peter,
> > >> Did you move the pinion angle up to point directly at the transfer
> > >> yoke: http://www.4xshaft.com/driveline101.html
> > >> God Bless America, ßill O|||||||O
> > >> mailto:-------------------- http://www.----------.com/
> > >>
> > >> Peter Pontbriand wrote:
> > >> >
> > >> > I'm stumped. A while back my '02 TJ decided to start getting a pretty
> > > bad
> > >> > vibration from about 65 miles per hour on up. It doesn't matter what
> > > gear I
> > >> > am in or which set of tires I have on, its always related to road
> > >> > speed.
> > > If
> > >> > I remove the rear driveshaft and drive in 4-hi, the vibration
> > > disappears.
> > >> > That suggests to me a problem with the driveshaft, yet all the
> ujoints
> > > and
> > >> > the centering ball are fine, no balance weights are missing, and
> > >> > there's
> > > no
> > >> > sign of any sort of damage. The pinion yoke and transfer case output
> > > seem
> > >> > fine as well, no discernable untoward movements there.
> > >> >
> > >> > What am I missing here? What could possibly be the source of this
> > > vibration?
> > >> >
> > >> > /Peter
> > >> > '02 TJ with AA SYE and Tom Woods drive shaft (among other things).
> > >
> > >
> >
> >

Re: Mysterious Driveline Vibration
 

If the drivetrain angles are indeed correct, it could be anything from a bad
u-joint to an out of balance driveshaft. Or tires, or pinion bearings,
or... it's really hard to say.

Jerry
--
Jerry Bransford
PP-ASEL N6TAY
See the Geezer Jeep at
http://members.cox.net/jerrypb/
"Peter Pontbriand" <sprocket@storm.ca.remove.me> wrote in message
news:chppfe$8ts$1@news.storm.ca...
> So, what else could cause a vibration at higher road speeds?
>
> /Peter
>
> "Jerry Bransford" <jerrypb@cox.net> wrote in message
> news:ohZ%c.78797$yh.12931@fed1read05...
>> No more than one degree on a TJ. You only use more when there are leaf
>> springs because axle wrap is a bigger problem for them.
>>
>> Jerry
>> --
>> Jerry Bransford
>> PP-ASEL N6TAY
>> See the Geezer Jeep at
>> http://members.cox.net/jerrypb/
>> "Peter Pontbriand" <sprocket@storm.ca.remove.me> wrote in message
>> news:chph57$5h7$1@news.storm.ca...
>> > You bet. Actually, the pinion is 1 degree lower than the shaft to cover
>> > flexing of the rubber suspension link bushings while under cruising
> load.
>> > Maybe it should be more than 1 degree?
>> >
>> > /Peter
>> >
>> > ----- Original Message -----
>> > From: "L.W. (ßill) ------ III" <----------@cox.net>
>> > Newsgroups: rec.autos.makers.jeep+willys
>> > Sent: Wednesday, September 08, 2004 10:39 PM
>> > Subject: Re: Mysterious Driveline Vibration
>> >
>> >
>> >> Hi Peter,
>> >> Did you move the pinion angle up to point directly at the
>> >> transfer
>> >> yoke: http://www.4xshaft.com/driveline101.html
>> >> God Bless America, ßill O|||||||O
>> >> mailto:-------------------- http://www.----------.com/
>> >>
>> >> Peter Pontbriand wrote:
>> >> >
>> >> > I'm stumped. A while back my '02 TJ decided to start getting a
>> >> > pretty
>> > bad
>> >> > vibration from about 65 miles per hour on up. It doesn't matter what
>> > gear I
>> >> > am in or which set of tires I have on, its always related to road
>> >> > speed.
>> > If
>> >> > I remove the rear driveshaft and drive in 4-hi, the vibration
>> > disappears.
>> >> > That suggests to me a problem with the driveshaft, yet all the
> ujoints
>> > and
>> >> > the centering ball are fine, no balance weights are missing, and
>> >> > there's
>> > no
>> >> > sign of any sort of damage. The pinion yoke and transfer case output
>> > seem
>> >> > fine as well, no discernable untoward movements there.
>> >> >
>> >> > What am I missing here? What could possibly be the source of this
>> > vibration?
>> >> >
>> >> > /Peter
>> >> > '02 TJ with AA SYE and Tom Woods drive shaft (among other things).
>> >
>> >
>>
>>
>
>

Re: Mysterious Driveline Vibration
 

If the drivetrain angles are indeed correct, it could be anything from a bad
u-joint to an out of balance driveshaft. Or tires, or pinion bearings,
or... it's really hard to say.

Jerry
--
Jerry Bransford
PP-ASEL N6TAY
See the Geezer Jeep at
http://members.cox.net/jerrypb/
"Peter Pontbriand" <sprocket@storm.ca.remove.me> wrote in message
news:chppfe$8ts$1@news.storm.ca...
> So, what else could cause a vibration at higher road speeds?
>
> /Peter
>
> "Jerry Bransford" <jerrypb@cox.net> wrote in message
> news:ohZ%c.78797$yh.12931@fed1read05...
>> No more than one degree on a TJ. You only use more when there are leaf
>> springs because axle wrap is a bigger problem for them.
>>
>> Jerry
>> --
>> Jerry Bransford
>> PP-ASEL N6TAY
>> See the Geezer Jeep at
>> http://members.cox.net/jerrypb/
>> "Peter Pontbriand" <sprocket@storm.ca.remove.me> wrote in message
>> news:chph57$5h7$1@news.storm.ca...
>> > You bet. Actually, the pinion is 1 degree lower than the shaft to cover
>> > flexing of the rubber suspension link bushings while under cruising
> load.
>> > Maybe it should be more than 1 degree?
>> >
>> > /Peter
>> >
>> > ----- Original Message -----
>> > From: "L.W. (ßill) ------ III" <----------@cox.net>
>> > Newsgroups: rec.autos.makers.jeep+willys
>> > Sent: Wednesday, September 08, 2004 10:39 PM
>> > Subject: Re: Mysterious Driveline Vibration
>> >
>> >
>> >> Hi Peter,
>> >> Did you move the pinion angle up to point directly at the
>> >> transfer
>> >> yoke: http://www.4xshaft.com/driveline101.html
>> >> God Bless America, ßill O|||||||O
>> >> mailto:-------------------- http://www.----------.com/
>> >>
>> >> Peter Pontbriand wrote:
>> >> >
>> >> > I'm stumped. A while back my '02 TJ decided to start getting a
>> >> > pretty
>> > bad
>> >> > vibration from about 65 miles per hour on up. It doesn't matter what
>> > gear I
>> >> > am in or which set of tires I have on, its always related to road
>> >> > speed.
>> > If
>> >> > I remove the rear driveshaft and drive in 4-hi, the vibration
>> > disappears.
>> >> > That suggests to me a problem with the driveshaft, yet all the
> ujoints
>> > and
>> >> > the centering ball are fine, no balance weights are missing, and
>> >> > there's
>> > no
>> >> > sign of any sort of damage. The pinion yoke and transfer case output
>> > seem
>> >> > fine as well, no discernable untoward movements there.
>> >> >
>> >> > What am I missing here? What could possibly be the source of this
>> > vibration?
>> >> >
>> >> > /Peter
>> >> > '02 TJ with AA SYE and Tom Woods drive shaft (among other things).
>> >
>> >
>>
>>
>
>

Re: Mysterious Driveline Vibration
 

If the drivetrain angles are indeed correct, it could be anything from a bad
u-joint to an out of balance driveshaft. Or tires, or pinion bearings,
or... it's really hard to say.

Jerry
--
Jerry Bransford
PP-ASEL N6TAY
See the Geezer Jeep at
http://members.cox.net/jerrypb/
"Peter Pontbriand" <sprocket@storm.ca.remove.me> wrote in message
news:chppfe$8ts$1@news.storm.ca...
> So, what else could cause a vibration at higher road speeds?
>
> /Peter
>
> "Jerry Bransford" <jerrypb@cox.net> wrote in message
> news:ohZ%c.78797$yh.12931@fed1read05...
>> No more than one degree on a TJ. You only use more when there are leaf
>> springs because axle wrap is a bigger problem for them.
>>
>> Jerry
>> --
>> Jerry Bransford
>> PP-ASEL N6TAY
>> See the Geezer Jeep at
>> http://members.cox.net/jerrypb/
>> "Peter Pontbriand" <sprocket@storm.ca.remove.me> wrote in message
>> news:chph57$5h7$1@news.storm.ca...
>> > You bet. Actually, the pinion is 1 degree lower than the shaft to cover
>> > flexing of the rubber suspension link bushings while under cruising
> load.
>> > Maybe it should be more than 1 degree?
>> >
>> > /Peter
>> >
>> > ----- Original Message -----
>> > From: "L.W. (ßill) ------ III" <----------@cox.net>
>> > Newsgroups: rec.autos.makers.jeep+willys
>> > Sent: Wednesday, September 08, 2004 10:39 PM
>> > Subject: Re: Mysterious Driveline Vibration
>> >
>> >
>> >> Hi Peter,
>> >> Did you move the pinion angle up to point directly at the
>> >> transfer
>> >> yoke: http://www.4xshaft.com/driveline101.html
>> >> God Bless America, ßill O|||||||O
>> >> mailto:-------------------- http://www.----------.com/
>> >>
>> >> Peter Pontbriand wrote:
>> >> >
>> >> > I'm stumped. A while back my '02 TJ decided to start getting a
>> >> > pretty
>> > bad
>> >> > vibration from about 65 miles per hour on up. It doesn't matter what
>> > gear I
>> >> > am in or which set of tires I have on, its always related to road
>> >> > speed.
>> > If
>> >> > I remove the rear driveshaft and drive in 4-hi, the vibration
>> > disappears.
>> >> > That suggests to me a problem with the driveshaft, yet all the
> ujoints
>> > and
>> >> > the centering ball are fine, no balance weights are missing, and
>> >> > there's
>> > no
>> >> > sign of any sort of damage. The pinion yoke and transfer case output
>> > seem
>> >> > fine as well, no discernable untoward movements there.
>> >> >
>> >> > What am I missing here? What could possibly be the source of this
>> > vibration?
>> >> >
>> >> > /Peter
>> >> > '02 TJ with AA SYE and Tom Woods drive shaft (among other things).
>> >
>> >
>>
>>
>
>

Re: Mysterious Driveline Vibration
 

It's a Tom Wood's CV shaft, and it hasn't been apart so the yokes are still
in phase. It didn't used to vibrate, that started recently.

/Peter

"Mike Romain" <romainm@sympatico.ca> wrote in message
news:41406E5E.3A66D53E@sympatico.ca...
> Could your driveshaft be out of sync? Are the u-joints at the ends
> lined up the same? For instance, if the clamp on the u-joint ear is
> rotated up in the front, is the rear joint also sitting with the ear
> clamp up?
>
> If so, then my guess is the driveshaft is a bad one. There are shops
> around that can balance them.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> Peter Pontbriand wrote:
> >
> > So, what else could cause a vibration at higher road speeds?
> >
> > /Peter
> >
> > "Jerry Bransford" <jerrypb@cox.net> wrote in message
> > news:ohZ%c.78797$yh.12931@fed1read05...
> > > No more than one degree on a TJ. You only use more when there are
leaf
> > > springs because axle wrap is a bigger problem for them.
> > >
> > > Jerry
> > > --
> > > Jerry Bransford
> > > PP-ASEL N6TAY
> > > See the Geezer Jeep at
> > > http://members.cox.net/jerrypb/
> > > "Peter Pontbriand" <sprocket@storm.ca.remove.me> wrote in message
> > > news:chph57$5h7$1@news.storm.ca...
> > > > You bet. Actually, the pinion is 1 degree lower than the shaft to
cover
> > > > flexing of the rubber suspension link bushings while under cruising
> > load.
> > > > Maybe it should be more than 1 degree?
> > > >
> > > > /Peter
> > > >
> > > > ----- Original Message -----
> > > > From: "L.W. (ßill) ------ III" <----------@cox.net>
> > > > Newsgroups: rec.autos.makers.jeep+willys
> > > > Sent: Wednesday, September 08, 2004 10:39 PM
> > > > Subject: Re: Mysterious Driveline Vibration
> > > >
> > > >
> > > >> Hi Peter,
> > > >> Did you move the pinion angle up to point directly at the
transfer
> > > >> yoke: http://www.4xshaft.com/driveline101.html
> > > >> God Bless America, ßill O|||||||O
> > > >> mailto:-------------------- http://www.----------.com/
> > > >>
> > > >> Peter Pontbriand wrote:
> > > >> >
> > > >> > I'm stumped. A while back my '02 TJ decided to start getting a
pretty
> > > > bad
> > > >> > vibration from about 65 miles per hour on up. It doesn't matter
what
> > > > gear I
> > > >> > am in or which set of tires I have on, its always related to road
> > > >> > speed.
> > > > If
> > > >> > I remove the rear driveshaft and drive in 4-hi, the vibration
> > > > disappears.
> > > >> > That suggests to me a problem with the driveshaft, yet all the
> > ujoints
> > > > and
> > > >> > the centering ball are fine, no balance weights are missing, and
> > > >> > there's
> > > > no
> > > >> > sign of any sort of damage. The pinion yoke and transfer case
output
> > > > seem
> > > >> > fine as well, no discernable untoward movements there.
> > > >> >
> > > >> > What am I missing here? What could possibly be the source of this
> > > > vibration?
> > > >> >
> > > >> > /Peter
> > > >> > '02 TJ with AA SYE and Tom Woods drive shaft (among other
things).
> > > >
> > > >
> > >
> > >