At the time - no one knew you could mix and match drive shaft parts from different bmw's to get the right length for the m30. I did it the hard expensive way, I bought a e30m3 DS then had it shorten, rebuilt and rebalanced for $400...OUCH! Oh in the pic is not the DS - a peice of PVC pipe to make sure we were lined up right. http://www.digitalunderpants.com/M30/DSC00387.JPG http://www.digitalunderpants.com/M30/DSC00388.JPG