OUCH!... I hate when that happens (:

I saw this trick used by a fellow AF owner, I haven't made the set up for my truck yet. Most PU's have openings or pockets where you would insert stake's when you add sideboards to the PU box. If there 2" square make a square plywood block about 1" deep that fits that opening, make two. Then make two 3" plywood square's from 1/4" plywood, glue one 2" square centered to each 3" square. When TC is loaded on your pickup insert 2" block into the front stake pocket, one on each side closest to the cab. Buy 2 cheap 2 dollar paint brushes and glue one to each 3" plywood square with the bristle pointing to, and just touching your camper, let glue dry. Now in the future when you want to load your camper just drop the 2" blocks into the 1st and 3rd stack openings on the driver side, bristles pointing inward. As you back under camper the paint brushes should just touch the camper and guide you to a good centered position. Do make a point the camper has been razed high enough to clear the truck bead. Or you can, do as I do and not as I say, and watch your wife waive you back, like she just stepped on a bee's hive and her arms have taken on uncontrolled movements that look no different, going forward or backward.