I believe the first TR4s used the same trunnions and upper arm/ball joint
assembly as the TR3A/B and that at some point early in the model run (CT63XX)
the trunnions and upper a-arm/ball joint assembly were changed to provide the
three degrees of positive castor. If you are using trunnions with pressed in
pins, they are the late TR4 type (as opposed the TR4A-TR6 type which used a
through bolt), and you would need the TR4 lower a-arms with these.
----- Original Message -----
From: emanteno@comcast.net
To: Steven Preiss
Sent: Saturday, April 26, 2008 2:57 AM
Subject: Re: [Fot] TR4 to 4A/6 Lower Trunnion Conversion
-------------- Original message --------------
From: "Steven Preiss" <spreiss@verizon.net>
> I thought the vertical links and spindles were unchanged from 3 ttrough
4A.
The 4A uses different vertical links and trunnions, as well as different
a-arms compared to the TR4.
Irv
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