Power Brake Booster 7in 55-64 GM

Power Brake Booster - 7 in OD - Single Diaphragm - Steel - Cadmium - Chevy 1955-64 - Each / MASTER CYLINDER MOUNTING STUDS ARE 3-3/8 ON CENTER. THIS IS A SINGLE DIAPHRAGM BOOSTER. BOOSTER OFFERS UP TO 1-1/2 (ACTUATOR) PEDAL TRAVEL.