Brake Master Cylinder. Chevrolet Caprice 1966-1970 Front Left & Right Bore: 1.1875 In. Chevrolet Bel Air 1965-1970 Front Left & Right Bore: 1.1875 In. Brake Caliper. Brake Rotor. Brake Vacuum Pump. Chevrolet Impala 1965-1970 Front Left & Right Bore: 1.1875 In.