As with most of these old trucks, time and previous owners have not been kind on the electrical systems. Sure, it all works most of the time, but try diagnosing an issue or wire up another circuit is next to impossible. Usually, the best thing to do is to cut it all out and start from scratch.
This was my personal favorite....14-4 machine cord wire for the headlights.
Here is the main feed for the headlights. This old cloth covered wire has power to it all the time. The insulation was literally falling off in my hands as I touched it. As you can see, some other circuit was "spliced" into it with copious amounts of electrical tape.
After a little time spent cutting and pulling, things are so much better...
There is some tidying up that still needs to be done but at least it's manageable now...
