Just a thought, have you changed anything in the rear drive train
recently? If so, have you done something to change the angle of the drive
line in relation to the rear diff.? If the drive line and the rear diff.
are too far out of line, the difference in angle (acceleration vs.
deceleration) can put your U-joints in a bind enough to do this. The old
CJ-Jeeps were bad for this if you swapped an axle housing without doing
your homework. Good luck.
Kevin Lake
56 GMC Suburban/napco
----------
> From: Grant Galbraith <trks@javanet.com>
> To: Andrew Thor <AndrewThor@email.msn.com>
> Cc: Oletrucks-email list <oletrucks@autox.team.net>
> Subject: Re: [oletrucks] Drivetrain Vibration
> Date: Friday, March 19, 1999 10:00 PM
>
> While putting the truck in neutral will remove load from the drive train
it could
> still vibrate in this situation because everything is still spinning,
especially
> likely because it vibrates when removing load by backing off on gas. As
well as
> checking U-joints as others have suggested you might want to check pinion
for
> looseness as well as the fit of U-joint in tranny bushing. Severe
vibration would
> make me uneasy.
>
> Grant 50 3100
>
> Andrew Thor wrote:
>
> > Try putting the vehicle in neutral when the vibration is going on. If
the
> > vibration goes away the problem is drive line related. If the problem
is
> > still there then the tires or rims are the problem.
> >
> > Andy, 56-3200 see it and other list members trucks by clicking 56 in
the
> > Chevy Showcase box at http://www.chevytrucks.org/users/wayne
> >
> > -----Original Message-----
> > From: owner-oletrucks@autox.team.net
[mailto:owner-oletrucks@autox.team.net]
> > On Behalf Of Tom Burt
> > Sent: Friday, March 19, 1999 12:44 PM
> > To: 'oletrucks'
> > Subject: [oletrucks] Drivetrain Vibration
> >
> > I am experiencing severe drivetrain vibration. This happens only when
I
> > let off the gas at freeway speeds and does not occur during
acceleration.
> >
> > The vibe seems to come from the tranny area and on back.
> >
> > I suspect bad U-joint(s). Can anyone confirm these symptoms?
> >
> > Tom B. 57 Stepside 3200
> >
> > oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
> >
> > oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
>
>
>
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
|