Had a small breakthrough this evening. Long story, but the coil that’s on the truck is apparently a 6v coil. I had a guy do the brakes for me before even bringing it home after buying it. He installed the coil and all the verbiage was facing the engine and I never had it off until tonight.
From what little reading I’ve done tonight, sounds like a 6v coil will still function ok in a 12v system (it’s about ohms and not volts) but at least I can understand now why I was getting 3.5 or 5 volts on the resistor output.
