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Old 06-12-2007, 08:29 AM
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Originally Posted by Dgas
I bought a new MC w the correct piston Dia. + rod hole (Deep) in the primary piston and a used 68 Chevelle Booster
Master cylinders with the DEEP push rod hole are usually used with no power assist.

Master cylinders with the SHALLOW push rod hole are usually used with power assist.

Sounds like you have the wrong master cylinder for your application.
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