11" Power Brake Booster Master Cylinder Disc/Drum Fits 1964 - 1972 GM A F X Body

Will work with Front Disc Rear Drum - 4 Wheel Disc or 4 Wheel Drum Applications - just add correct valves. 11" Zinc brake booster with Bail Top Master Cylinder. 11" Zinc Power Brake Booster. Mounting Bracket for 1964-1972 GM A-F-X Body Cars.