I have done it successfully. PM me if you need help. Youll also need a special tool to remove the tailshaft. Also replace the rear seal while your in there and done reuse the tailhousing gasket


the special tool is a 31mm extremely tall socket. You can buy it at the dealer for a fortune, or make your own by cutting a short 31mm (oh and has to be 12 point) and welding it to a deep socket. The bolt is extremely tight and im my case I had to use a 3 foot breaker bar and had a fat kid sit on the engine becuase my tourque wanted to tip it over.

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1981 300SD 512k OM603