I have a leak in my filler neck which I just spent the morning repairing by doing my best to sand the whole pipe down and fill with JB Weld for fuel tanks and then coating with POR 15. I think this will hold for a bit but I would like to replace my whole system with a rust free one through @arcteryx aka Jason from Crusier Yard. He has all the stuff and his prices are fair. He even gave me some advice about how to raise the body to slip the fuel filler pipe in. All of my stuff is rustier than I am comfortable with considering how much I have already spent on "restoring" my truck and the fact that Mr. T is discontinuing these parts(the filler neck pipe is already a goner). My skid plate is moth eaten and it will take as much bar chain oil as I will feed it and it soaks it up. It's f-ed. I am not sure the condition of the gas tank, but I figure as long as I am going this far why not just do it all? I can't tell by reading the FSM how the body is attached to the frame. I see the schematic for the body mount points, but I am not sure I understand how they work. It looks like two nuts that uses the lower one to tighten against the snug upper one, but again, I have some rust under there and I am not at all excited about getting something botched or snapping anything off. Are there threaded hard points above these or is there a bolt up there that needs to be held steady? What happens if I snap something off? Do I need to take all the inner fender pieces and the rear mudflap assembly off too? I gues the whole filler pipe slips in there somehow, but it seems like it will take some wiggling, even if I do raise the body. How high do I need to raise the body? Any insight and tips or tricks to get this project underway would be appreciated. Also, would you get a new fuel pump or buy a used one, provided it is rust free?