Dodge/Plymouth A, B & E Body Black Wilwood Master Cylinder, Booster and Proportioning Valve. Master cylinder is a black anodized Wilwood with machined black anodized top and is designed for use with disc/disc or disc/drum brakes. Booster is an 7 inch dual diaphragm which offers better stopping than single diaphragm boosters. Kit also includes Wilwood adjustable proportioning valve with mounting bracket and stainless brake lines. This complete kit is designed to bolt up to all 65-70 A-Body and 65-74 B and E-Body Dodge and Plymouth cars.