1967-72 Chevy GMC Truck 8” Dual Zinc Brake Booster+ Master Disc Drum Kit

Description: This is a new Power Brake Booster, Master Cylinder, and Proportioning Valve for 1967-72 Chevy and GMC trucks with disc brakes in front and drum brakes in rear. Kit includes:• 8" Zinc Dual Diaphragm Brake Booster • 1" Bore Cast Iron "Corvette Style" Bail Top Master Cylinder • Brass Disc/Drum Proportioning Valve with Driver Side Mounting Bracket and Hard Lines • Black Firewall Mounting BracketThis 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.For Disc/Drum ApplicationsApplications include: 1967 1968 1969 1970 1971 1972 Chevy and GMC C10 Pickup, C10 Suburban, C20 Pickup, C20 Suburban, C30 Pickup, C30 Suburban, 1967 Chevy and GMC Panel Truck. Check out my ebay store for more quality automotive accessories. New items are being added daily.

Price: 186.65 USD

Location: La Porte City, Iowa

End Time: 2024-07-10T18:48:07.000Z

Shipping Cost: 0 USD