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[TR] (TR) Rear Shocks

To: <triumphs@autox.team.net>
Subject: [TR] (TR) Rear Shocks
From: "Dave Connitt" <dconnitt@fuse.net>
Date: Sat, 19 Mar 2011 09:33:49 -0400
List,
One thing I noticed while restoring my TR4A IRS was that the lever arm shock 
actually limits the downward travel of the swing arm. I am not sure if everyone 
realizes this. The way I realized this was during my rear suspension assemlby, 
I had installed the spring first, then the half shaft. When I released the 
spring compressor on the rear spring, the half shaft locked up. Upon closer 
inspection, the universal joints were locked up due to the excessive angle of 
the half shaft. So, I installed the lever arm shock and the universal joints 
could now rotate smoothly.
My point is anyone considering this conversion needs to figure out a way to 
limit the downward travel of the swing arm as part of the upgrade. I suspect 
that the damage people see after this upgrade is the bottoming out of the swing 
arm being absorbed by the upper cross member. I think the real danger is what 
is happening to the universal joints. If you go thru a deep enough pot hole or 
what ever, the damage could be significant.
I think that anyone who has installed tube rear shocks should lift the rear of 
their car off the ground and try rotating the rear wheels. If you feel ANY 
resistance, don't drive the car until you figure out a way to limit that 
downward swing arm travel.
Dave Connitt
'67 TR4A
http://home.fuse.net/davestr4a
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