OK.. me again... no one 'fessed up to having an electrical diagram for a 65 C 10, but maybe one of ya knows the answer to a specific question:

There has been a lot of 'hack' wiring on this truck but I seem to have traced out that the brake circuit:

comes from the fuse box ( orange wire ) to the headlight switch, where it jumpers off the terminal, and goes to the brake switch ( this wire was burned up ). The other side of the brake switch ( white wire ) goes right back to the light switch. Is this right?

I had the brakes working, then they suddenly quit, along with the tail lights. I started trouble shooting, and they suddenly started working again. Then, I traced the wire back to the headlight switch, and saw the plug on the back of the switch had melted some ( probably when the orange wire burned up ). Unplugged / replugged the switch and they stopped working again, and won't go back to working no matter how many times I unplug/ replug the switch.

So.. I'm not sure if the switch or the plug is the problem. any suggestions?