So I would think that you bulb has two contacts on the base, correct? The third connection is ground through the body of the bulb. That has to be connected to the body ground or sheet metal somehow.


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!