$650 for a rebuild (don't remember the shop, someone else will) or new (or junkyard) driveshaft.

You cannot replace this one yourself, it is centered and straked in place, not held with clips like the replaceable kind. Or more exactly, you CAN replace (I did), but then you will have to find a way to hold the joint centered and get it balanced, and no one has the tools to balance it, etc.

Used driveshaft in good condition is the easiest.

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!