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By John Erickson

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EMD GP38-3s

The GP38 and the GP38-3 were basically the same engine. There was only minor changes that made them easier to maintain and gives them lower emissions, therefore, I place the GP38-3s as a subset of the GP38s. The Amtrak GP38-3s of the 725-754 nos. seem to have been re-geared during their rebuild at Progress Rail to near 57:20 and about 100 mph maximum speed.