I have a "shaking" sensation coming from the rear of my 2004 Ram 2WD? This is more than a vibration. When I am running between 40-55mph, the rear of the truck is shaking somewhat. It tends to fade away as I speed up and it will also fade away as I slow down below 40mph. I can look in my rear view mirror on the driver's side and see the tire somewhat wobbling a bit on the road under these conditions but maybe it always wobbles some. I did just have a 2/5 BellTech lowering kit installed so I took it back to my install people and they drove and checked the pinion and swore 8 ways to Sunday that the pinion is dialed in perfectly. This is a pretty knowlegeable group and they lower and primarily raise many trucks/SUV's from dealers around Atlanta. I am wondering if a rim could be bent or a belt separating causing a bad tire? I also had the truck aligned and that didn't help. I just want to make certain that if the pinion is correct is there anything else in the lowing kit (shackle flip with shocks in the rear) that could cause such an act? If the tire went bad or the wheel was bent, apparently it is much more noticeable after it is lowered. What do you think? And what would do to remedy?