This is Garage Sale priced because this part is discontinued. NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS This spring mounts between the window regulator and door panel and keeps tension on the panel where the crank mounts. Designed and manufactured to factory specifications for authenticity. Sold individually. We recommend replacing these whenever changing window cranks or replacing your door panels. Will fit most GM vehicle applications where a tension spring is required, including but not limited to the applications listed below: GM Applications: 1949-1954 Fits Chevrolet Bel Air. 1949-1954 Fits Chevrolet Fleetline. 1949-1954 Fits Chevrolet Full Size. 1953-1957 Fits Chevrolet One-Fifty / Two-Ten / Bel Air. 1958-1979 Fits Chevrolet Impala/Full Size. 1953-1979 Fits Chevrolet Corvette. 1964-1977 Fits Chevrolet Chevelle/Malibu/El Camino. 1967-1981 Fits Chevrolet Camaro. 1967-1981 Fits Pontiac Firebird. 1962-1979 Fits Chevrolet Fits Chevy II/Nova.