Posted by jongwinnett on December 31, 2011 
I'm no expert, but they might both be MP15DC's - I thought MP15AC's had the "tunnel motor" style grilles in the hood?
Posted by J. C. Smith, Jr. on December 31, 2011 
Both these units are MP15DC models, (the MP15ACs have side-mounted radiators,) but despite the closeness of their unit numbers, 1329 is obviously ex-SP, from its cab-mounted number indicators, the 1321 came to UP from the CNW.
Posted by BUFFIE on December 31, 2011 
Thanks for the info - correction made.
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