This product can fit Chevrolet: 

1973 Silverado / Cheyenne 1500, 2500, 3500
1973 C10, C20, C30, K10, K20, K30
1973 Blazer

1974 Silverado / Cheyenne 1500, 2500, 3500
1974 C10, C20, C30, K10, K20, K30
1974 Blazer

1975 Silverado / Cheyenne 1500, 2500, 3500
1975 C10, C20, C30, K10, K20, K30
1975 Blazer

1976 Silverado / Cheyenne 1500, 2500, 3500
1976 C10, C20, C30, K10, K20, K30
1976 Blazer

1977 Silverado / Cheyenne 1500, 2500, 3500
1977 C10, C20, C30, K10, K20, K30
1977 Blazer

1978 Silverado / Cheyenne 1500, 2500, 3500
1978 C10, C20, C30, K10, K20, K30
1978 Blazer

1979 Silverado / Cheyenne 1500, 2500, 3500
1979 C10, C20, C30, K10, K20, K30
1979 Blazer

1980 Silverado / Cheyenne 1500, 2500, 3500
1980 C10, C20, C30, K10, K20, K30
1980 Blazer