My 99 e300 with 430k I just got on the road (426k) I am hashing out problems with it that were wrong with it before parked. Anyway, to cut to the chase. When shifting to drive the car jerks and jolts noticeably. Is that ring and pinion war I am feeling? It feels different than the other two cars with less miles. Replaced the front flex disc, center support bearing and rear flex disc were crack free and center support had minimal play if any.

I plan to replace the fluid in the rear.

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Only diesels in this driveway.
2005 E320 CDI 243k Black/Black
2008 Chevy 3500HD Duramax 340k
2004 Chevy 2500HD Duramax 220k