Center bearing support.

http://catalog.peachparts.com/RenderScriptTemplate.epc?_cmd=epccat_VehicleAAA&cookieID=2FG17RJ3A2FJ12YPAD&yearid=1988%40%401988&makeid=MB%40%40MB%40%40X&modelid=300%2DTE%2D001%40%40300TE+Wagon&catid=K%40%40Driveshaft+%26+Axle&mode=PA&subcatid=K1030@@Driveshaft+Support&source=www.peachparts.com&clientid=catalog.mercedesshop

Also check exhaust hangers............

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A Dalton

Ah you are right. I had to replace the muffler hangers a few months back. That is probably it.
Thanks.

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