Reverse light socket when used on many GM US vehicles in the mainly 69-83 era.
TWO wire as shown.
... check yours for likeness.. must be TWO wire NOT THREE NOT 3.
Fit ranges:
BUICK |
1969-1990 |
CADILLAC |
1973-1992 |
CHEVROLET |
1969-1991 |
GMC |
1973-1991 |
OLDSMOBILE |
1973-1985 |
PONTIAC |
1969-1987 |