Hello all I’m acarguy Glad to be here. Truck is my bosses Dads old truck has been setting from 2018 after new engine install. 1984 F250 6.9 extended cab. C6 automatic. Going to put an E4OD in it and repair all the wiring that has been fiddled with over the years. They don’t make a wiring harness for the truck. Tried American auto wire, Painless, no luck so I’m Looking for the factory shop manuals that have electrical and vacuum schematics! Found some at The motor book store but, not for the 6.9 IDI engine. Thanks in advance for your help.