I acquired an old AD headlight switch in a box of spare parts at a garage sale. I was hoping to use it in place of the one in my '48 GMC that came with the new wiring harness installed by the previous owner.
Everything worked on the AD switch except the rheostat which doesn't work with the new switch either!
In getting the truck ready for its inspection I decided to add back up lights and a back up alarm and use the old switch.
There was a hole already drilled even with the lighter but more centered in the dash. I mounted the switch and wired it so that the first pull turns on the lights and the second pull sounds the alarm. That way I can choose whether to have the alarm sound or not.
It looks great with its original knob and kind of looks like it has always been there.
Now all I need is another old switch---with a working rheostat---to get my truck looking right again.
