Well, not that I've ever done anything like that, but I've seen the problem fixed by getting a grandson, oops, helper, giving him the biggest flat blade screw driver (2 feet in length is good) in the neighborhood and have the flat blade put between the nut and the "stringer" that is next to it. This is an act that your helper performs on his back on the garage floor, screwdriver in one hand, flashlight in the other and his body twisted up like a double pretzel. The other person, the perpetrator of the incident, can use a socket "up top" to gently turn the bolt head and the nut will magically procede up the bolt and be tightened. Do not rush, as your helper might lose the leverage from the screw driver and the nut will just turn. In this case, have your helper insert the flat blade to gain the leverage again and you can finish up. I've heard a rumor that this is about impossible to do by yourself or even with your wife as your assistant. It's a rumor that she will quickly realize how stupid you have been and start nagging you about having to help. Again, this is an unverified rumor going around the "hood."
:banghead:
Tuck