I wouldn't use rubber again, ever. The poly diff mounts don't compress as
much under load, and don't "go away" over time. The diff tries to twist
it's way out of the mounting studs every time you nail the accelerator.
When new the rubber mounts do a good job but as they fade, the diff can
pound back and forth. When a gap develops, the hammering results in
failure of the front passenger side mount. Poly is compressible enough yet
holds up over time. If it were nylatron, it would be a different story. I
have poly mounts in fir almost 5 years, as good as new!
Bob Kramer, Austin TX
Hill Country Triumph Club
TR6x3, TR250 x3, TR3A vintage race
rgk@flash.net
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> From: Peter Zaborski <peterz@merak.com>
> To: 'TR6 List' <triumphs@autox.team.net>
> Subject: tr6 diff mounts - poly?
> Date: Thursday, August 07, 1997 5:13 PM
>
> Is there any reason to prefer polyurethane diff mounts for the TR6? I
> can see why one would want them on the suspension components (in fact I
> just installed them all around on my car) but it seems that the diff is
> not part of the "handling" system of a car.
>
> Further, it seems that the "hardness" might do more harm than good if
> more road shock is transmitted to the frame because the mounts are not
> absorbing them as much as the stock rubber ones would.
>
> Comments, suggestions, real-life experiences appreciated.
>
> Peter Zaborski
> 76 TR6 (CF58310 UO)
> Calgary AB Canada
>
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