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Re: [T3] '69 rear support bushings...

On 24 Aug 2006 at 11:46, Redfan Buckreezy wrote:

> I am in the throes of an engine rebuild and thought that I would replace the
> rear support bushings with either "better than mine" , or (as Berg suggests),
> solid aluminum blocks turned to fit to original specs.  But, as usual, I cannot
> seem to find either the original "heights" for these or any specs whatsoever. 
> Anyone have either some good ones or the specs for me to turn them on my lathe?

Which bushings do you mean? There are lots of them supporting the rear 
subframe, of a couple different styles, plus the 2 on the outboard ends of the 
rear mount crossbar.

Frankly, I wouldn't recommend making any of those solid. They do a lot of 
vibration isolation, AND they limit the peak stresses on the body attachment 
points. The rear crossbar attachments to the body are actually rather skimpy, 
and a solid mount there could cause the mount to tear away from the body. I've 
actually seen this happen on a car with rubber mounts that got driven "cross 
country." A solid mount there would make it happen a lot faster and a lot 

I suspect that Berg's recommendation was for drag racing, anyway.

Jim Adney
Madison, WI 53711-3054

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