I just recently noticed that when looking at my truck from the outside, the passenger side of the truck sits noticeably higher. I measured it out and it sits about 2 inches higher on the passenger side. I also noticed that the tire sticks out a little bit on the passenger side while the drivers side tire seems to be leaning inwards. I'm not too familiar with bad ball joints but I can't hear any audible popping sounds or anything of that nature when going down the road but the truck does pull a bit to the left. I don't know what else it could be; the leaf springs are both in similar conditions on either side and the shocks are almost brand new.