Re: Brake master cylinder ports
Drum brakes will have a residual check valve, usually located in the outlet port, that maintains a small amount of pressure on the wheel cylinder cup seals.
Disc brakes do not
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My Classics:
'72 K20 Suburban + '65 Dodge Town Wagon
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'73 Z-28 Camaro
'63 Ford SWB Uni Pickup
'50 Ford Coupe
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