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RE: [TR] TR3A upper control arms

To: <triumphs@autox.team.net>
Subject: RE: [TR] TR3A upper control arms
From: "Randall" <tr3driver@ca.rr.com>
Date: Tue, 23 Jan 2007 15:16:39 -0800
> Ray and Randall,
> UH OH!  I was wondering about this.  TR3B's suspension is on 
> the  bench.  
> Looking from the Rear of the car, RH Side front control arm  
> passes over the rear 
> at the ball joint.  Over is defined as "outer" or  contacting 
> the ball joint 
> at the splined hole.  On the LH side the rear  control arm 
> passes over the 
> front and contacts the ball joint.  The 62 TR4  is the same 
> way, opposite of each 
> other.

Sounds just right to me, Darrell.

I found that it was easy to figure out on the car ... assemble both inner
pivots without engaging the outer ends of the arms.  Then as you rotate the
arms on the inner pivots until the outer ends start to mesh, you can see
which arm "wants" to go outermost (next to the ball joint).  At least on my
cars, you would have to apply some force (deforming the rubber bushes) to
get them to go the other way.

> I guess this would be important, Huh.

Probably less than you would think.  Might shorten the life of the bushings
a tiny bit, but I'd guess the changes in steering geometry (caster & camber)
would be too small to notice.

Randall


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