Power Brake Booster 8in 55-64 GM

Power Brake Booster - 8 in OD - Dual Diaphragm - Steel - Cadmium - Chevy 1955-64 - Each / BOOSTER IS 5-1/2 FROM FIREWALL MOUNTING SURFACE TO MASTER CYLINDER MOUNTING SURFACE. MASTER CYLINDER MOUNTING STUDS ARE 3-3/8 ON CENTER. THIS IS A DUAL DIAPHRAGM BOOSTER. BOOSTER OFFERS UP TO 1-1/2 (ACTUATOR) PEDAL TRAVEL.