Chevrolet El Camino 1964-1972. Chevrolet Chevelle 1964-1972. This is a new 9" single diaphragm zinc coated brake booster and Master Cylinder designed to fit 1964 - 1972 GM A - F - X body vehicles. Cast Iron 1" Bore Master Cylinder with Bleeders for 1964-1972 GM A Body, 1967-1969 F-Body, and 1967-1972 X-Body vehicles.
