Jim,
Do you feel the vibration in the gear shifter? If so, is it very
pronounced or does it feel about like the vibration you are feeling in the
steering wheel?
We're all familiar with the rate of vibration when a wheel is out of balance
at 60 MPH. Does it feel like it is at that rate or much faster? The reason
I ask is if the component causing the vibration is turning at driveshaft
speed, it will be about 3 times faster than wheel speed. This may help you
narrow your search.
Have you checked the diff mounts? A cracked mount can cause some crazy
vibrations.
Terry Geiger
www.GeigerGarage.com
----- Original Message -----
From: "jim hearn" <jimhearn1@comcast.net>
To: "'Navarrette, Vance'" <vance.navarrette@intel.com>; "'6 Digest'"
<6pack@autox.team.net>
Sent: Wednesday, June 24, 2009 2:53 PM
Subject: Re: [6pack] Trying to locate the source of a TR6 vibration
> Thanks for all the input. I've been all through the wheel bearings and
> they are fine. I too have had tire balance issues that were pretty
> evasive but finally conquered. This vibration doesn't have a particular
> speed range; it just needs to be in fourth gear (at just about any
> speed) with some acceleration taking place. My thought is that it could
> be a bearing in the tranny to do with the final output shaft but I don't
> know TR6 trannys or any trannys enough to say for sure. Jim
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