Technically correct for the following :
1967-71 Camaro
1967-71 Firebird
1968-71 Chevy II & Nova
1964-69 Chevelle & El Camino
1965-70 Bel Air, Biscayne, Caprice & Impala
1960-68 Corvair
1964-68 Corvette
1966-69 Chevy & GMC Truck, Blazer, Jimmy & Suburban
Will work for most models up to 1982.