For those that wonder why all of a sudden the car vibrates at speed, feels like tailshaft vibes, here are some pics of what goes wrong.
The balance weight comes off the tailshaft. Have seen this many times.
This one is on my ED that I just got.
The one missing is at the diff end.

 

 

Attachments:

IMGP0762_resize.JPG [ 78.72 KiB | Viewed 507 times ]

IMGP0761_resize.JPG [ 100.34 KiB | Viewed 502 times ]

Interesting, I've had this weird vibrating drone at certain speeds/revs, etc. I might check this out, swap it off the old one if thats the case.