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Old 08-17-2016, 01:27 AM   #2
leftybass209
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Join Date: Feb 2011
Location: Modesto, CA
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Re: 73 brake booster master cylinder on a 69 c10

Welcome! Is your 69 4 wheel drum as original, or is it a disc/drum conversion? Are you running a power brake booster on the 69 or not?

4 wheel drum brakes don't require a proportioning valve. You should look into bore size on the 73 MC if you are NOT running a booster as different piston sizes will change brake pedal effort and feel.
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