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Re: Power Brake Help? New MC and Booster Install
The drum/drum master cylinder has the residual valves on both ports to keep the pressure at about 10psi (google for location). The disc/drum m.c. usually has a larger front reservoir than the rear and doesn't have a residual valve for the front disc brakes.
One thing to remember, good brakes are a necessity for these heavy trucks so don't take shortcuts. If in doubt as to the type you have call the people you bought it from or buy one made for you drum brakes. If you have the old drum/drum m.c. you could probably use it as a test.
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68 GMC 250/3 speed Saginaw p/b p/s
69 Chevy 350/350 currently in pieces still lookin for a cab
06 Trailblazer
I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive...
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