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. [Cadillac Calais: 1967, 1968] - [Oldsmobile 98: 1950, 1951] - [Oldsmobile Deluxe 88: 1951, 1952, 1953] - [Oldsmobile Standard 88: 1951] - [Oldsmobile Super 88: 1951, 1952, 1953] - [Pontiac Bonneville: 1957, 1960, 1961, 1962, 1963] - [Pontiac Catalina: 1950, 1951, 1952, 1953, 1955, 1956, 1957, 1960, 1961, 1962, 1963] - [Pontiac Chieftain: 1950, 1951, 1952, 1953, 1955, 1956, 1957] - [Pontiac Grand Prix: 1962, 1963] - [Pontiac Silver Streak: 1950, 1951, 1952] - [Pontiac Star Chief: 1955, 1956, 1957, 1960, 1961, 1962, 1963] - [Pontiac Streamliner: 1946, 1947, 1948, 1950, 1951, 1952] - [Pontiac Super Chief: 1957] - [Pontiac Torpedo: 1946, 1947, 1948, 1950, 1951, 1952, 1953]