Originally Posted by Pete52
In You're porta power there is a spring on the inside of the ram.Disc brakes don't really retract they just quit squeezing on the rotor when you let you're foot off the pedal.Disc brakes don't need residual valves gravity is not going to force the caliper to retract.


Pete

Not true. Depending on the master cylinder location, some disc brake setups need a 2PSI residual valve.


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

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