Bob;
The TR3 and early TR4 have trunnions that are the same for each side and have
degree caster. The late TR4 with a right and left side have the pin set for 3
degree caster. The TR4A and TR6 use a bolt instead of a pin thru the trunnion
and
are also set for 3 degree caster and are right and left sided. The late TR4
trunnion with 3 degree caster will fit the early TR4 vertical link. I did this
on
my TR3A and also changed the upper A-arms to the TR6 with the bolt in ball
joint.
Much easier to change and cheaper.
Dean Tetterton
Vintage race TR3A
BOB KRAMER wrote:
> Friends,
> I have a high speed vibration I'd like to cure with my 1962 TR4. It has the
> later upper control arms completewith a set of off-set steel bushings to
> improve camber. The trunnions are a little loose, and since I'm going to
> replace them, I can't help but wonder what differences exist between the
> TR3/4, and later TR4 trunnion, and if the later TR4A/TR6 trunnion retains the
> same geometry and threads. The car currently has a left and right trunnion, 5L
> 02218L, and 5L 02202R, part numbers which I can't find in a catalog.
> This car handles well. I don't want to screw it up with the wrong parts. Any
> ideas?
>
> Bob Kramer
> rgk@flash.net
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