Not a big deal to replace. Raise up the right rear, put your jack stand under it and go to work. Shouldn't take more than a couple of hours and probably less. All three items are together, right there, under the rear of the car. Good idea to do all them at once as they probably are due and it's a pain to do it at separate times. Good luck.

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Ben
Chief wrench for Niki's

'84 MBZ SL380