It's very possible 3B but they worked exceptionally well not 2 months earlier, I guess I'm in for a tear down this Spring. It felt the same when I installed a '53 Hydro-vac in the '36 when I first built it, I took it out to re-build it but now the same thing. Gotta be the pistons. I think I'll go with new slave cylinders this time. Thanks Bobb.
