Not sure what you mean.

No problem with the included u-bolts that came with the kit. Do you have a lift kit on your truck? The photo in the beginning of this thread looks just like the install should be except removing the small rubber roller bolt and roller froom the leaf springs as the instructions say to do to keep the RAS from bottoming out on the roller bolt. My '06 stock Titan 4X4 w/tow King Cab rides great with the heavy duty RAS kit. No body sway and the regular ride has not changed except a little lift in the rear but nothing drastic. I will be towing my TT during Thanksgiving and will post a follow-up after we get back. So far though I am VERY satisfied with the RAS.
