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 Commercial Chassis: 1961] - [Cadillac DeVille: 1961] - [Cadillac Series 60 Fleetwood: 1961] - [Cadillac Series 75 Fleetwood: 1961] - [Oldsmobile 98: 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967] - [Oldsmobile Delmont 88: 1967] - [Oldsmobile Delta 88: 1965, 1966, 1967] - [Oldsmobile Super 88: 1960, 1961, 1962, 1963]