Hi all. One of my Fords is a 1984 F-250 w/ a 7.5L. I bought it to tug or camper and fourwheelers/dirt bikes to the mountains and back all summer or as much as possible. First trip out it ran great until about 60 miles upriver from home. Started sputtering and backfiring intermittently and over heating. I limped it the other 50 miles to campsite and left it there while I took the wifes car back to grab the four core radiator and a direct drive flex fan I had because it seems to run great with no load. started back with everything and ended up calling in backup to come grab my camper and another to grab my truck because of the same issue. long story short... I found the main wiring harness on top of the intake manifold to have melted together. Upon further inspection I have more bare wires on the frame rail that were causing my intermittent tank selection problems prior to this. So I,m in dire need of a complete wiring diagram(s) for a 1984 F-250 XLT Lariat 7.5L with all wiring from bumper to bumper. Now I have no tail lights, no dash lights, front tank returns into rear and headlights will only stay on for about 5 minutes and then go dead. So I am starting from scratch with this motor or my built 429 out of my 72 factory high boy custom. Either way I need your help Please.