My truck is a 64 C10, I'll give it a try, but my problem is the wiring on this truck is a mess, the previous owner pretty much went crazy under the dash, it doesnt even have the high beam switch, and the high beam indicator shows its on. But I'll give it a try. Im hoping its just the power to the box, because I had no power to the starter switch from the box, so we'll see. But right now Im doing one thing at a time, I just got done putting my Hurst ratchet shifter in, but tomorow I will attack the the electrical.
