I have got deep into a wiring problem with my 1974 F-350 Ranger. 390 12' flatbed
.What started as a simple power problem became huge as I tried to track the wires. I have not found any wiring diagrams that follow the color code of this truck. Ignition wiring, headlight wiring, cab wiring, fuses block wiring doesn't match anything in any book. And I have bought several. Even found an old mechanic with all the original drawings. Or so I thought. I have considered buying a new harness but it would have to be custom I think. Which gets into a lot of $$$$.
Has anybody come across some electrical diagrams that would match this truck or is it a pipe dream?

 

You have done a good job of confusing me.

Not sure if you mean engine power or electrical power to vehicle.
Can you maybe be a little more specific as to what you are seeking ?

They were not all that complicated if you are talking electrical power, and if so, what are you trying to get power to?