The Stovebolt Site Forums The Shop Area The Electrical Bay 1965 C10 Tail Lights wiring

Hi,
When I got my Chevy c10 it had some different lights added on the back with a flat bed. I now baught the full bed, put it on, I have been trying to get the wiring worked out. I saw on my friends truck (he has a 65 c10 also) that there are three wires running back. I am wondering are there two grounds and one power or two power and one ground. I am thinking possibly there are two power and one ground that goes from the left side light to the right side light. Any help would be great, a pic would be great also. thanks.

I don't have a wiring diagram for your truck but I doubt if any of those wires is a ground. The usual 3-wire set-up is:
1. tail lights (connected to the light switch)
2. left blinker/stop light
3. right blinker/stop light

The ground for all these is the bulb housings which are grounded to the bed of the truck.

These can be easily identified with a 12 volt trouble light you can buy at any parts house.

Waldo is correct. You can buy flat 3or 4 wire cable used for trailers at any parts store. It works good for that. Brown is tail/marker lights. Yellow is left turn. Green is right turn. 4 wire has a white wire that can be used for a ground or back up lights. Be shure you have a ground wire from the frame to the bed.