I have a problem with the rear of the car feeling real louse. It feels like there is a lot of play in the back, and it justs drifts around. I have replaced the sway bar bushings, but it only helped a little, and I also had the wheels aligned. I think that maybe the control arm bushings may need to be replaced, but the shop that did the alignment told me that they were fine, although if I lift the back of the car up and grab hold of the tire I can feel some play. Would this cause my problem, or is there something else that may be causing it?