I'm sorry, I thought I put my information up. I have a 1951 Chevy 3604. I checked the terminals and cleaned them, working good. When I had a mechanic make my truck road safe he took a look by bypassing the headlight wire at the terminal and they came on. He was pretty sure it was the switch. Just wanted a few more opinions before I spend $40 on a USED one, know what I mean?