Anyways, I know that, if the case involves a w123, there is a listing with partsamerica (advanced auto), so there HAS to be an aftermarket solution. If you search around here, you should find a thread on this (probably hasn't been posted to in a couple of years). There's a few members here that swear an 80's Ford Falcon uses the same joint, but I can't confirm that. Also, in the case of the driveshaft, the u-joint is servicable, you just have a lot of work to do to get it out. Apparently, mercedes has welded caps over the ends of the joint, sealing it into the ds. The solution lies in a dremel tool, and a BFH (big f'in hammer). Good luck, and if you come to any conclusions, please share your experience.

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1989 300E 144K