Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Disc/Disc vs Disc/Drum master cylinders
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Old 02-22-2007, 04:32 AM
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Originally Posted by rlvirago

What is the difference between disc/disc and disc/drum master cylinders, if any and can a disc/drum cylinder be used on a disc/disc set up?
The disc/disc will have a larger fluid reservoir to initiate rear caliper piston movement. The disc/drum will have a smaller rear system reservoir and most likely will include a 10# residual pressure valve, not needed (or wanted) on four wheel disc.

Not interchangeable.
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