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Old 07-25-2017, 08:55 PM   #23
mike16
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Join Date: Dec 2009
Location: bisbee, arizona
Posts: 1,530
Re: Brake Booster working TOO much

Not sure but on some vehicles the diameter of the master cylinder piston is a different diameter on a disc brake set up vs. a drum set up.

made that mistake before, 15/16th dia. vs. 1 inch dia. makes a BIG difference and you feel it right away with a power booster

disc brakes usually have the larger diameter piston because disc brake calipers require a larger VOLUME of fluid to opperate
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