- original 1/2 x 14 N.P.T.F.
Note: Requires a single 56 series female terminal connection
Note: Requires a single 56 series female terminal connection
| Make | Model | Years |
| Buick | Gran Sport | 1965 - 1967 |
| Buick | Riviera | 1963 - 1969 |
| Buick | Skylark | 1961 - 1969 |
| Buick | Special | 1961 - 1969 |
| Buick | Sportwagon | 1964 - 1969 |
| Chevrolet | Biscayne | 1968 |
| Chevrolet | Blazer | 1969 |
| Chevrolet | Camaro | 1968 - 1969 |
| Chevrolet | Chevelle | 1968 - 1969 |
| Chevrolet | Chevy II | 1968 |
| Chevrolet | El Camino | 1968 - 1969 |
| Chevrolet | K20 Suburban | 1968 - 1969 |
| Chevrolet | K30 Pickup | 1968 - 1969 |
| Chevrolet | Nova | 1969 |
| Chevrolet | Townsman | 1969 |
| Oldsmobile | 442 | 1964 - 1971 |
| Oldsmobile | 98 | 1970 - 1973 |
| Oldsmobile | Cutlass | 1961 - 1973 |
| Oldsmobile | F85 | 1961 - 1972 |
| Oldsmobile | Toronado | 1968 - 1970 |
| Pontiac | Firebird | 1967 - 1969 |
| Pontiac | GTO | 1964 - 1969 |
| Pontiac | Grand Prix | 1965 - 1969 |
| Pontiac | LeMans | 1963 - 1969 |
| Pontiac | Strato-Chief | 1965 - 1969 |
| Pontiac | Tempest | 1962 - 1969 |