I have an 85 F250 6.9 and the Cab is completely shot, I took everything off the frame, all thats left is the fuel tanks and the motor, The remains of the cab are on my pick-up to take to the scrap yard. I have been trying to find a legable copy of a wiring diagram on the site with no luck, So here is a quick question, hopefully someone can help.... I cut the wires at the firewall both sides, I still have the GP solinoids etc. attached to the motor laying on top of the frt tire. DO I NEED ANYTHING FROM INSIDE / UNDER THE DASH, are there any type of controllers, "brains", modules, that are needed to run this motor, I am thinking of going with a much older style cab 1967-70 and once the diesel cab is gone--- it is gone---- Please help with this issue before I throw something I may need in the scrap yard.

thanks
Jesse