Description:
Buick: 1930 All series 30 (4 required per car), 1931 Known to fit series 50 - probably most models (4 required per car)
Cadillac: 1934-35 All LaSalle (4 required per car), 1936-37 All series 50 & 60 (4 required per car), 1938 All series 50 / 60 / 60S (4 required per car), 1939 All series 50 / 60S / 61 (4 required per car), 1940 All series 50 / 52 / 60S / 62 / 72 (4 required per car), 1941-53 All models (4 required per car)
Oldsmobile: 1931 All series F (4 required per car), 1932-38 All series F & L (4 required per car)
Pontiac: 1931-32 All models (4 required per car), 1937-49 All models (4 required per car)