A control arm bushing plays a vital role in a suspension. Replace those faulty O.E. rubber bushings with Prothane's polyurethane control arm bushings. These polyurethane bushings provide the longevity and performance needed to maximize a suspension's efficiency.
Prothane's polyurethane is a firmer bushing than the O.E. Not only does this increase the longevity of the bushing but gives the suspension a boost in handling performance. With a firmer bushing, there will be a slight increase in NVH (noise, vibration, and harshness), but most drivers prefer the boost in performance in spite of that.
As your suspension travels, a rubber control arm bushing is repeatedly stretching and flexing. After a while, the center sleeve begins to sag and your suspension alignment is throw out of whack. The sagging will go on until the rubber fails completely.