Rear trailing arm bushing. Those and the subframe bushings get worn out and basically turn the rear suspension into a trailer that follows the front. I put Ireland Engineering subframe bushings in and it made a huge difference in the rigidity of the car. I still need to do my trailing arm bushings though, I'm going to stick with stock rubber on those. __________________ ~Dave~ 98 328ti Morea Grun slicktop 11 128i space gray slicktop 13 JGC WK2 Deep Cherry Search | RealOEM |