I just bought a E30 M3 shift lever for my '87 325iS, and when i shift into reverse, it slightly rubs against the drive shaft, and when i really throw the shifter into reverse, you can feel the shifter grinding against the driveshaft, how do i get rid of this?, should I get new shift bushings? P.S. where are some good jack up points for the car?...I've been having a hard time finding a good jack point thanks Jon