I have a slight problem. After driving, when I come to a stop the truck feels like it settles in or has a rocking effect in the rear end or . The a$$ end seems to only do it. The shocks are good still, I have no sag and it does not bounce when you push on all four corners to check for worn shocks they all settle nice with normal rebound. The only thing that I can think of is the spring blocks acting like a carrage effect. Do you think it could also be the slip spline on the drive shaft to trans. If so wouldn't I notice it more than just the regular minor thunk when I put it in gear? If at the blocks are the problem would replacing the u-bolts and realy cranking them down help? Or am I way out on the problem? need your help thanks.