How To: C15a Wire-3 restoration

[Jordan Baker]

This past week I have been working away on the front harness. I ended up drawing out a new wiring diagram from the perspective of standing in front of the truck looking back. Basically where you’d stand. Initially I had trouble sorting out the lighting toggle switches but then realized the wiring harness was made for SPST switches and not the TPST ones used on the later trucks. The Ford wiring diagram shows this much better. I made up a few jumpers to be soldered into the harness.

One question I do have. Do I have the green wires on my drawing correct? That power comes off that circuit overload piece and then the wires split into 6 individual wires going to the inspection lamp socket, dash lamp switch, tail lamp switch, tail/side switch, tail/side/headlamp switch and stop isolation switch?