Originally Posted by Diesel911

Febi; unforunatly there is no company like Lemfoerder that I could find selling a better quality Drive Shaft Bearing Support and no one has bought one from the Dealer and given some comment on who might make the one from the Dealer.

If you are speaking of Me as you said I replaced My U-joint long ago before the info in the newer thread was availiable that essentially said you could beat on the U-joint and restore it to flexing properly again.

My case was different. I was having no vibration issues but had My B2 Piston break. I removed the Drive Shaft in order to push the Transmission to the side to get at the B2 Piston.

When I had the Drive Shaft off I found that the Drive Shaft Bearing Support was cracking so I decided to repalce that and the Drive Shaft Support Bearing.

During the inspection I found the notchy U-joint and looked up an old thread on replacing it and did a good deal of searches to find the U-joint wich turned out to be cheap and easy to find if I had know what to look for.
I also found that there are quite a few Cars that have the staked in U-joints. Ford actually has a kit to remove the Staking on some of their Drive shafts.
Unfotunately no kit for Mercedes.

In short I got away with changing the U-joint.

If I had known about the newer info and freeing up the Joint I likely would have tried that before ordering a U-joint. Also it is not clear if freeing up the Old U-joint has logivity it.
So I guess you have a choice to make.