If it was lack of oil, the whole crank would be damaged and discolored. If it didn't make bad noises before, don't sweat it and put it back together if it all measures within spec

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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