This is a Brand New Chrome 11” Power Brake Booster, Master Cylinder, and Proportioning Valve Kit with Mounting Brackets for 1973-93 Chevy GMC Trucks with Disc Brakes in front and Drum Brakes in rear.

Features:

* The disc brake combination / proportioning valve is a necessity when doing a drum to disc conversion. The combination valve will provide all the valving necessary in the system. Combination valves perform four functions...(1) Proportioning, (2) Metering, (3) Residual Pressure, and (4) System Failure Warning.

* The proportioning valve kit will ensure proper fluid transfer and contains a residual pressure valve for proper braking feel. The valve contains a low pressure shut off valve and warning light switch to ensure driver and vehicle safety should your brake system lose hydraulic line pressure.

* The included Mounting Kit allows you to mount the proportioning valve to the Left (Driver's Side) of the master cylinder and brake booster, and includes two hard lines that connect the master cylinder (with 9/16" & 1/2" ports) to the proportioning valve.

Package Includes:
* Chrome 11" Single Diaphragm Power Brake Booster.
* Chrome 1" Bore Bail Top Master Cylinder with 1/2" & 9/16" ports on both sides (includes plugs for ports not used).
* Chrome Proportioning Valve with Chrome Driver Side Mounting Bracket and Lines.
* Chrome Bolt-on Firewall Mounting Bracket.

Applications include, but not limited to:
1973-1974 Chevrolet Blazer
1987-1991 Chevrolet Blazer
1975-1986 Chevrolet K5 Blazer
1975-1986 Chevrolet C10
1973-1986 Chevrolet C10 Suburban
1975-1986 Chevrolet K10
1973-1986 Chevrolet K10 Suburban
1987 Chevrolet R10
1987-1988 Chevrolet R10 Suburban
1989-1991 Chevrolet R1500 Suburban
1987 Chevrolet V10
1987-1988 Chevrolet V10 Suburban
1989-1991 Chevrolet V1500 Suburban
1973-1974 Chevrolet C10 Pickup
1973-1974 Chevrolet K10 Pickup
1979-1986 GMC C1500
1979-1986 GMC C1500 Suburban
1979-1986 GMC K1500
1979-1986 GMC K1500 Suburban
1987-1991 GMC R1500 Suburban
1987-1991 GMC V1500 Suburban
1975-1978 GMC C15
1975-1978 GMC C15 Suburban
1973-1991 GMC Jimmy
1975-1978 GMC K15
1975-1978 GMC K15 Suburban
1987 GMC R1500
1987 GMC V1500
1973-1974 GMC C15/C1500 Pickup
1973-1974 GMC C15/C1500 Suburban
1973-1974 GMC K15/K1500 Pickup
1973-1974 GMC K15/K1500 Suburban