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Re: Unusual bearing wear on a GM 4.3L
Posted to HD/Fleet Forum on 11/7/2000

Jim,

Your pictures are really pretty dark, but from what I can see, the bearings just look like they have been beat to death. Possible detonation ??? Overheating, oil dilution ? A balance problem will generally not affect the rod bearings, only the mains, as... Login to read more.