Dodge/Plymouth A, B & E Body Wilwood Master Cylinder and Booster. Master cylinder is a polished Wilwood with machined black anodized top and is designed for use with disc/disc or disc/drum brakes. Booster is chrome 8" dual diaphragm which offers better stopping than single diaphragm boosters and holds more vacuum than 7" boosters. This kit is designed to bolt up to all 65-70 A-Body and 65-74 B and E-Body Dodge and Plymouth cars.