You might check out the link to "Miesk5's Homepage" in the How-To & Tech Articels forum. It's on the first page, about 10-12 topics from the top. Anything connected to the body or frame will have to be modified including;
radiator fan shroud
transmission and t-cas shifter linkage
front and rear bumper mounts
steering shaft
My 79 F-150 still has a 3" body lift on it, while the one on the 78 Bronco was removed by the P.O. The worst problem is the wear on the rag joint in the steering shaft, as a body lift places more stress on that part. Ther is no kit available to re-locate the front bumper, but I did make some bumper brackets out of 3" channel iron for the 79 so the bumper matches with the body, JSM84