Seaboard System GP40 #6674 was built May 1966 and delivered as Seaboard Air Line #602, then re# to Seaboard Coast Line #1517 and later re# to CSX 6674. Left roster and re# VMV 6673, then Union Pacific #858. Retired and went into GP38M-3 rebuild program and became Union Pacific #2535, then UP #1035 |