1964-72 A-Body 1967-69 F-Body 1968-74 X-Body, 8 in Black Dual Diaphragm Firewall Brake Booster & 1.125 in Bore Black Aluminum Wilwood Master Cylinder and Proportioning Valve, works for 2 and 4 Wheel Disc
The CPP/Wilwood Engineering Complete Power Brake Booster Kit (Part Number 6474BB8DB-WWMCPVB) features an 8" dual black booster. Includes a black Wilwood master cylinder and proportioning valve combo. Compatible with 64-72 A-Body, 67-69 F-Body, 68-74 X-Body. Suitable for 2 & 4 wheel disc systems.
The master cylinder reservoir should always hold enough fluid to allow the brake pads to completely wear away without the risk of running out of fluid. As a disc brake pad wears, the caliper piston will extend out of its bore. As the caliper piston extends, the master cylinder fluid level will drop in order to fill the caliper bore with brake fluid. If the reservoir is too small, there is a possibility that the master cylinder can run out of fluid and the brakes will fail.