GM 9" Chrome Power Brake Booster Master Kit DISC DISC Chevelle Camaro 1

This listing is for a Brand New 9" single diaphragm CHROME power brake booster with Chrome Bail Top master cylinder (1 1/8" Bore) and Chrome Disc Disc Prop Valve Kit . This 9" Booster has a nice finish and includes the necessary Rod and Clevis. This Booster is designed to work on your 1964-1972 A-Body F-Body and X-Body Vehicles Including:  Perfect size for big block engines or taller valve covers 1964-1972 Chevrolet Chevelle 1964-1972 Chevrolet El Camino 1964-1972 Pontiac LeMans 1964-1972 Pontiac GTO 1964-1972 Pontiac Tempest 1964-1972 Oldsmobile Cutlass 1964-1972 Olds 442 1964-1972 Buick Skylark 1970-1972 Chevrolet Monte Carlo 1968-1974 Chevrolet Nova 1971-1974 Pontiac Ventura 1967-1969 Chevrolet Camaro 1967-1969 Pontiac Firebird The master cylinder in this kit is the bail top style and features a 1 1/8" bore (ideal for Disc/Disc applications). This kit includes a Disc/Disc Proportioning Valve kit. This valve is also call a combination valve, as it performs all of the necessary valving functions with a disc brake conversion. These functions include the following: Proportioning: As more force is applied to the brakes and the car begins to lean forward, less braking force is needed in the rear. This valve decreases the pressure to the rear, preventing lock up. Metering: Metering is used in the front disk brake portion in the disc/drum system to delay application of the front discs allowing the slower reacting drum brakes to catch up. This provides rear stability on wet surfaces and helps prevent front pad wear. There is no metering function with the disc/disc setup. Residual Pressure: Drum Brakes require residual pressure of 10 lbs. to be held in the line. This pressure keeps the brake shoes close to the drums giving you a more firm pedal feel. The disc/disc setup does not require this pressure. System Failure Switch: This valve has a system failure switch that will alert you when half of your braking system is not working properly.  The proportioning valve comes complete with the mounting bracket and connecting lines to hook everything together like the picture shows. Please Note: Professional Installation is Highly Recommended (No Instructions Included) 7910C + 3512c + PV4C w/ Side kit Track Page Views With Auctiva's Counter

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