I believe the actual name of the part is a driveshaft carrier bearing. Search this forum for 'driveshaft support' and you will get a ton of hits.

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"It's not about how fast you can go, but how well you can go fast."

Bob in Richmond

'97 S320 (LWB), Ruby Red Metallic, 73k miles
'97 S420V, Smoke Silver Metallic, 155k miles