Ok, so I replaced the center bearing and the support coupling. However, I don't know what went wrong, but when I was putting everything back together, the 2 bolts that go into the supports coupling did not go back into the holes. One went back in, but I can turn it and turn it perpetually and it doesn't get any tighter than what it is. The other one did not go back in at all. There are 2 metal pieces that fit into the car frame that have the threads, these are whats damaged and needs to be replaced. There are no part numbers on it. Anyone got any info on this?

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1990 190E 3.0L