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Has (or can) anyone with an A3 truck measured the front wheel cylinder link pin lengths? I’m still curious what the factory A3 link pin lengths were compared to the A2 trucks.

Quick follow up. I just cut the slots of the link pins 1/8" deeper and everything worked fine after that and was able to adjust the shoes to spec.

Thanks guys, well I ended up measuring the 2 different pistons with the same link pin. The A3 piston does make the link pin stick out farther so I guess that solves my problem. New shoes and the bigger wheel cylinders are just too much for the standard link pin. I'll just either cut the...

yeah I think if any modification, it will probably be to the "link pins" (thanks for the proper term Jeepsinker). Drilling the pocket deeper in the piston would probably work okay but sharp angles such as from a drill bit are where cracks form. I do have access to a nice machine shop so I could...

I've got a couple questions on this.. 1. Clay, did you ever mount these new larger A3 wheel cylinders on your 109? Did it go okay or did you have issues? 2. Can anyone help me find the part number for the front wheel cylinder "piston pin things" like in the pic below that goes on the M35a3...

That explains why the dual circuit M35A3 Master cylinders have a different volume split between circuits than the 87-89 M35a2 dual circuit trucks did. Never understood why they did that until now.