The Mercedes Dealer sells new Drive shafts but they are as seperate pieces.

For a regular W123 the long section with the U-joint was like $280 each but that was over 5 Years ago. Don't know what the shipping would be.

However, if the CD Drive Shaft is different that would be a new Ball Game.

You could try a used one or get a used one and send that to be worked on.

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84 300D, 82 Volvo 244Gl Diesel