Local parts counter asked the same question. We assumed it must be the bolt that goes through the rotor. Wharehouse shows 11 of the 8mm in stock and 2 of the 12mm. My guess is that 12mm are rare.

Local parts dealer wants 59.95. He runs a special all the time on front wheel drive half shafts and he quoted me the same as if it were FWD. We went in Saturday. He does not stock them, but expects to be able to get them from the wharehouse Monday morning. Auto Zone quoted $99.00 or 149.00.

I'm not even sure they are bad, but the boots are rotted and split. For $60 each, it may be cheaper than having the boots replaced.

Pulling the clips was a hassle. I fought trying to grab the hole and pull. I finally used two small screwdrivers and pushed the clips off quite easily, and the naturally locked up the gears. Once the axle halves were removed it was eaqsy to rotate the driveshaft flange and get them out. Getting them back in is another question. I have until Monday to figure it out.

I am thinking about grinding, heating, bending and drilling a pair of neadle nose pliers. then pressing a pin into one jaw and reheating them to re-temper them, so that the jaw is bent with a spot under the chin ground away and with one tooth in the middle to stick through the hole in the clip and fit into a hole in the upper jaw of the pliers.

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69 220D not running
79 240D parts car
80 240D Beater runs everyday
81 300TD temp disabled cooling problem
82 300SD sweet