Originally Posted by coilover
Thanks everyone,
Master cylinder is frame mounted and pedal gets hard one inch from floor. Pump once and has half pedal; twice and full pedal. Pedal stays hard in each location. With new rotors, bearings and spindles I get less than 0.001 run out so knew something had to be retracting the pads.

It's common to need residual valves with a frame mounted master cylinder.


1946 GMC Pickup - S-10 Frame, 455 Buick, TH400, original patina.

My 46 GMC on Photobucket