This new reproduction carburetor spacer and mount gasket set is compatible/replacement for 1966-67 Bronco 170; 1963-64 Fairlane 170, 200; 1965 Fairlane 200; 1966 Fairlane with Thermactor emission control system (T/E) and C4 transmission; 1967-68 Fairlane with T/E and C4 transmission (before 1/15/68); 1963-64 Falcon 144, 170, 200; 1965 Falcon 170; 1966 Falcon 170/200 with T/E; 1967-68 Falcon with T/E and C4 transmission (before 1/15/68); 1965 Mustang 170, 200; 1967-68 Mustang with T/E and C4 transmission (before 1/15/68); 1963-64 Ranchero 144, 170, 200; 1967-68 Ranchero with T/E and C4 transmission (before 1/15/68); 1964-67 Comet 200 without Improved Combustion emission control system; 1968 Comet 200 (before 1/15/68); This excellent reproduction of a 6-cylinder carburetor spacer is made of cast aluminum. Venturi hole: 1.375" (manifold side), 1.425" (carburetor side). Includes 2 gaskets. OEM part numbers: C3UZ-9A589-B (replaced by C6OZ-9A589-A), C3DZ-9447-A.