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Does anybody know,how long the UP used their SD 7/9`s and Alco S2`s-or are some of them still in service ?
JDRumley Member # 625
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The UP had only 10 SD7's, no SD9's. They were built in June 1953, as #'s 775-784. In 1962 they were renumbered 450-459. They were retired between 04/79 and 10/80. Alco S2's are also long gone being retired as trade-ins to EMD between 01/68 and 12/71.
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