I just noticed that the wiring harness that has the female end of the trailer plug that then connects to the wiring harness up in the drivers side rear frame rail is gone; more than likely vibrated off from bouncing down oil field lease roads.

I can't seem to find a direct replacement online (did Amazon & eBay searches). Is this a dealer only item?

Think I'd have better luck at the local U-Pull it? They don't have many 97-04 F150's and the ones the do have right now are all Hurricane Harvey storm surge victims (salt water).