I notice each trailing arm has one side for each of the two bushings flared. Also the new bushing is asymmetric with one side having a collar and the other without . I assume the side with no collar is fed through the flared side to end up on the non-flared side with the collared portion of the bushing ending up against the flared side. Make sense? ...I did not look when removing since I assumed the bushings were symmetric since that's the way they were with my Bavaria.