rear sway bar link...
pretty simple fix. if that's it. I would think if the rear was looked at this would have been spotted though.
could also be the e-brake hardware inside the rear rotors.
and since reading your sig, I see new links, lets just cross that off the list...
the cv's will make a racket when they are failing, but I'd not swap them... CVJ rebuilds are quality recommends here...

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 560SL convertible
1987 190D 2.5-5SPEED!!!

1987 300TD
2005 Dodge Sprinter 2500 158"WB
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!