@jenk
I have different drive shafts like you but here is one pic of other ibi how he made it...
http://img251.imageshack.us/my.php?image=antriebswellebeiabgelasenemautonw5.jpg
Did you already try to remove that balancing weight?
What are your shafts like then??
In that pic he has removed the weight? I havnt removed it because i thought it mite cause problems?
Thanks for your reply mate