Good advice. Only asking because I'm getting a vibration from the rear between 2200 and 3000 rpms and if the problem is the pinion gear and I was going to switch out the rear end anyway... Just a thought. Has anyone rebuilt the rear end or have any ideas what the vibration would come from? The pinion seal is weaping a little bit. Nothing to write home about though.

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90 300TE
00 ML320