I would like to second Randii's inference that periodically checking, and tightening your U-bolts (especially after messing about with add-a-leaves etc.) is a VERY good idea. I run fairly heavy duty U-bolts (9/16") with "Nylock" nuts, and even those, after a couple of days of wheeling (or a few days of daily-drivin') can work themselves loose. If your using the basic parts-store brand U-bolts, they can back out even faster! Save yourself the aggravation (of damaged threads and sheared spring pins, or worse!))and slide under yer rig and snug those U-bolts down. You'll be glad you did! My 2 centz- <img src="/forums/images/graemlins/cheers.gif" alt="" />

Todd/HI