If you have a flange bolt that is of suspect design for my money you replace the bearing, put in the latest technology in flange bolts and as long as you have gone that far incorporate direct oil feed. I just replaced my double row IMS on my 2000 S. The bearing I took out was, as it turns out, in good shape. Nevertheless, I put in a new double row bearing, new flange bolt and direct oil feed. It seems you either go that direction or just leave the whole thing alone and hope for the best.
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