[TR] TR6 performance

alan salvatore alansalvy at gmail.com
Tue Apr 16 18:07:30 MDT 2013

Sounds like trailing arm bushings are going or gone.  That allows the
trailing arm to torque to one side
under acceleration when shifting giving you the " twitch".

I've even had fairly new urethane bushing elongate within a couple of years,
I went back to uprated rubber bushings from TRF.


On Tue, Apr 16, 2013 at 3:31 PM, Dennis Culligan <dctr6 at optonline.net>wrote:

> On Apr 15, 2013, at 12:27 PM, Frank Fisher wrote:
> >drove my friends TR6 the other day and gave it a bit of stick.
> >snip
> >The one thing i did find a little funy was the way the back end moved
> around.
> >when driving realativly staright if i drove over say a crack in the road
> the
> >back would kind of jump to one side..just a little. no big deal. is that
> kind
> >of normal in an IRS?
> Frank -
>    I have a late 1976 TR6 that I've owned for 24 years.  The phenomenon you
> are experiencing is what I've always called the "TR6 twitch". It seems to
> happen when the rear end "unloads" after hitting a bump or after a weight
> shift (like after you've gone around a curve and are straightening the
> wheel). My car is in very good kit, as they say, and has a tube shock
> conversion and a rear sway bar. I have no idea what causes this and have
> gotten quite used to it over the years. I just had some alignment work done
> and had adjustable trailing arm mounts installed - these should not make a
> difference but we'll see what happens.
> Dennis Culligan, Highland, NY/ 1976 TR6 CF57948U
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