Sold in pairs
1961-72 Oldsmobile F-85, Cutlass and 442 models
1965-70 Oldsmobile 88, 98, and Starfire
1966-67 Oldsmobile Toronado
1967-70 Buick models except Riviera
1971-72 Buick Skylark and GS models
1964 Pontiac Tempest
1965-70 Pontiac executive models with 8 cylinder - Tempest, Grand Prix, Catalina, Bonneville
1971-72 Pontiac GTO and Lemans models
1964 Chevrolet Chevelle except station wagons
1965-70 Chevrolet Chevelle
1971 Chevrolet Chevelle excpet station wagons