71-91 GM P/U Brake Booster 8in Dual Zinc

71-91 GM P/U Brake Booster 8in Dual Zinc
Master Cylinder and Booster - 1-1/8 in Bore - Dual Integral Reservoir - 8 in OD - Dual Diaphragm - Steel - Gold Zinc Plated - GM Fullsize SUV / Truck 1973-87 - Kit