Thanks tango--way to go---I think I feel a relapse, I need that 1/16" Oh No, here goes the diarrhea again!!!----only kidding
. I actually have 1/4" at the tightest point and I've measured the distance from a known point on the bus to the ground on both sides and written the value in paint on the body so I won't have to try to remember. The bus doesn't sit exactly even with the ground even though the frame is square as can be so the values differ from side to side. I doubt that my bus body was jig built way back when so it is no suprise that the body is less than square. I ended up chopping off four offending 1/4"X 20 bolts on the garage door and that did the trick. I drove the bus in and out several times to check repeatability and the pop up is still undamaged.
As I expected, I was so excited about getting my toy (bus) in my own play pen (garage) that I couldn't sleep. I'm bushed so will soon head for the sack. Jack