This direct replacement drum brake wheel cylinder was specifically engineered to match the fit, function and performance of the original wheel cylinder on particular vehicles. It is manufactured and tested for quality assurance. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Chevrolet C20 Pickup: 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973] - [Chevrolet C20 Suburban: 1967, 1968, 1969, 1971, 1972, 1973] - [Chevrolet K20 Pickup: 1972, 1973] - [Chevrolet K20 Suburban: 1972, 1973] - [Chevrolet P20 Van: 1968, 1969, 1970, 1972] - [GMC C25/C2500 Pickup: 1967, 1968, 1969, 1970, 1971, 1972, 1973] - [GMC C25/C2500 Suburban: 1969, 1971, 1972, 1973] - [GMC K25/K2500 Pickup: 1972, 1973] - [GMC K25/K2500 Suburban: 1972, 1973] - [GMC P25/P2500 Van: 1968, 1969, 1970, 1971, 1972, 1973]