I installed one in my '40. ( Note my truck is not stock - is 12v with new wiring harness and light switches )Picked up a generic one at Auto Parts store. Also purchased ( 2 ) plunger type switches to install in door jambs. Remember with dome light, power is always on. When you open the door, plunger switch completes the ground to make light come on. Also connects to headlight switch for on/off & dimming.


1940 Chevy KC 1/2-Ton
In the Stovebolt Gallery