Rotor GM Buick, Cadillac, Oldsmobile 51--56 Packard, Studebaker 53-61 DR306Rotor DR306 Leverantr Standard Motors Buick Century 1954 1956 Roadmaster 1953 1956 Skylark 1954 Special 1953 1956 Cadillac Deville 1953 1955 Eldorado 1953 1955 Series 62 1951 1955 Oldsmobile Eighty Eight 1951 1954 Ninety Eight 1951 1954 Standard 88 1951 Packard Caribbean 1956 Clipper 1953 1957 Executive 1956 Hawk 1958 Studebaker 5E7 1960 6E7 1961 5E12 1960 6E12 1961 5E13 1960 6E13 1961 3R28 1954 3R38 1954 5E12D 1960 5E13D 1960 5E7D 1960 6E12D 1961