Y322 (South Yard - Acca Yard) with a CSX SD40-2 and GP38-3. CSXT 8234 was originally built as L&N 3606 in 1977 and operated as SBD 8234. CSXT 2004 was originally built as L&N 6036 in 1979 and operated as CSXT 2687.
The EMD SD (special duty) series are a strong and reliable kind of locomotive which still serve America's rails today. They have proved themselves reliable by clocking in several million miles of freight service over several decades.