126 rear suspension

[fahrgewehr2]

Clang-y/wobble-y/boom-y noise from the left rear wheel. I thought it was a busted sway bar link, but they are relatively new and still intact. Dealer told me it was the control arm bushing ( I think that is what its called) and that it costs thousands to fix and the bushing is not sold seperatley (entire assembly only). I find that hard to believe and want to know how I can fix this and how much it will cost to have done at an indy (seems beyond my limited abilties).

I would probably want to do both sides.

Also, if my terminology for that part is wrong, please correct.

Thanks.