[Waldoe]

choke ,That is an interesting thought. I never new of that. It definitely only has 2 wires, provided nothing comes out the top of it and into the column. It also has a break controller on the truck, and it was built for towing. Has a goose neck ball in the bed. My curiosity is up now. I will look at daylight tommorrow for more info. I think the truck also hauled a camper at times. Thanks for the info.