GM 9" Chrome Power Brake Booster + 1" Milled Master Cylinder Disc Drum Kit GTO for Sale


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Price: $249.50


GM 9" Chrome Power Brake Booster + 1" Milled Master Cylinder Disc Drum Kit GTO

This listing is for aBrand New9" single diaphragm CHROME power brake booster with Chrome Ball Milled master cylinder, and Chrome Disc/Drum Prop Valve Kit with Pressure Switch. 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:

  • 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" bore.

This kit includes a Disc/Drum 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.This valve comes complete with the mounting bracket and lines to mount to the master cylinder as well as a pressure Switch. The lines are setup to mount into 9/16", 1/2" outlets. The bracket and line setup is designed to mount the valve to the left side (driver's side) of the master cylinder. 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.


7910c + 3510-4C + PV2C Side Bracket Kit (21#)



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