[TR] TR6 rear brake cylinder shims--question
Tim Gaines
mtgaines at presby.edu
Thu Aug 6 13:39:27 MDT 2026
I have recently finished installation of the RATCO cross member that
serves as the rear diff support and the mounting plate for the lever
shocks. The project was long and a bit tedious, but I am very happy with
the result. However, when I was reassembling the hubs to the aluminum
trailing arms I found that a couple of the six studs on each TA had
stripped the holes or their own threads when the studs came out with the
nyloc nuts. I decided to use the Patton-Machine TARK-KS guide kit for
drilling and tapping the trailing arms for Keenserts. That went
extremely well, and I now feel confident that the hubs (and wheels!) are
securely mounted to the new studs that are in turn secure in the
Keenserts.
Today I thought I was going to simply adjust the brakes, so I got out my
official shop manual to refresh my memory. Now I feel pretty foolish, so
I am going to have to ask for help. The diagram of the brake cylinder
shim sequence in the manual does not agree with the instructions. I am
pretty sure that the instructions are right and my earlier installation
based on the diagram and a Google AI query is wrong, but I would like
some corroboration.
The manual says:
1) The thin spring(y) shim with 2 tabs at the open end slides into the
cylinder's groove first, from the front side (where the hand brake lever
is), against the back of the backplate with the tabs pointing out.
2) The thicker flat locking shim slides in from the opposite direction
until the tabs from the spring shim fit into the slots in the locking
shim.
3) The shorter flat spacing shim slides in from the front on top of the
other shims. Somehow I have misplaced one of these shims--another
problem to deal with!
Is that correct? I had reversed the first two shims.
If anyone has an interest in or questions about the the RATCO
installation or the Patton-Machine kit, I would be happy to provide
details.
Tim
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