So, I trundle down to CarQuest & ask about the part. They ask me if it is an 8mm or a 12 mm. Nothing about annular or homokinetic. I even showed him the picture. He had no idea. Can anyone enlighten me? Thanks.

Mine is the old homokinetic, but I'm assuming from the discussion here that the annular ones fit up just fine.

The good part is that they want $75, instead of the $312 at MB.

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240D '81 265K
300SDL '87 81K