Here is one
U-Joint 2005
Can you replace the universal joints????? - PeachParts Mercedes ShopForum

My U-joint Repair thread 2011
Drive Shaft U-Joint Is Staked/Crimped In Place, Now What To Do? - PeachParts Mercedes ShopForum
My Benz World post with all of the U-joint sources.
Another U-Joint / Driveshaft Thread - Benzworld.org - Mercedes-Benz Discussion Forum

Tightening Drive Shaft Collar Nut 2011 post #40
How to replace the driveshaft support (carrier) bearing - A step by step guide - Page 3 - PeachParts Mercedes ShopForum

Motor Mounts should be:
DIY Repair Links
DIY Links by Parts Category - PeachParts Mercedes ShopForum

PeachPartsWiki: Do It Yourself Articles - Mercedes Vehicles

There is comments in the thread below on the OE Mercedes Motor Mounts and what company sells the same Mounts as an aftermarket product.
Fight Back
Fight Back; Post/List Where The Parts You Bought Were Made

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84 300D, 82 Volvo 244Gl Diesel