You might want to consider "balancing" the drive shaft before you install it. When I got my Z1 ds, I had it balanced just to make sure all was well. Sure enough it was off a couple oz's. Just a thought.
Man so close. Dropped the giant exhaust system. Almost got the new DS in Place. The splines are a @#$%& to line up and after going in half way the back end is caught up on the rear sway, and making too extream an angle for the yoke to slip in. Need to pull the rear sway, and try again.