Thanks, folks for the replies!
Jeff, I fear your's may be the most logical. It's definitely aftermarket, judging from the gaping hole cut in the floor. Truck belonged to my uncle and was given to me with the understanding I fix it. When I started poking around the wiring, I should've given it back!!
But heck it's family and I have a lot of good memories, tossing melons to the hogs in the back of the truck. It's never gonna be a show truck, but it would be nice to know how fast (or slow) it's going!
Thanks again!
