Originally Posted by Rembrant

Oh there is a ground wire going from G107 all the way to the rear of the truck, at least there is on my 1984, but it only goes to the license plate lamp, same as it shows in the diagram. My 1980 F150 doesn't have this wire...so it must have been added sometime after 1980 (on the Flaresides at least). The tail lights were grounded to their mounting brackets, which were grounded to the bed...imagine...can you think of a worse grounding point??...A Flareside bed...with a wooden floor, mounted on wooden blocks sitting on top of the frame. They came from Ford that way. I've heard reports that Ford did start adding a ground wire like I did with mine, but it wasn't until late 1985 or sometime in 1986.

My trucks are well grounded...one of the first things I did with both was run all new ground cables and wires, and cleaned all mounting points to shiny bare metal...even including the little ground wires on the inside of the fenders by the front marker lights. My 1984 F150 had a factory ground wire from the battery to the frame to the engine block. I've replaced this, same as factory, on both trucks. I think if you have all good grounding wires, you will have minimal wiring issues (or at least fewer than most Bullnose owners).

Anyway, the cab & chassis trucks were the same way, considering that when Ford built them, they didn't know what was going to be on the back of them.

Originally Posted by Idi_guy88

I’m trying to find replacement tail lights for my 83 F350 CnC do you know a part number or anywhere to buy ones that will plug into the existing wiring harness in the back?