Whew. Not a quick or fun job. I just replaced all of the above on my 1966 230SL. The "Support Disc" is probably the wrong terminology but I am talking about the circular rubber support around the front portion of the drive shaft. I had to take it to a local Mercedes dealer to remove/reinstall the spanner nut on the drive shaft so that I could repace this doughnut shaped support.
I do feel better about having all of these drive line components replaced with new ones. Some appeared to be the original parts in the car.
I took it around the block briefly to see if there were any issues and found none except that the car seems to have a slight whine in reverse. Any thoughts? The installation went smoothly with no binding or anything.
Harry