GP38AC 657, and GP38-2s 421 and 676 by Frisco.org Posted on May 16, 2015 GP38 657, and GP38-2s 421 and 676 GP38AC 657, and GP38-2s 421 and 676 lead a train at Kansas City, Kansas on July 7, 1978 (P.A. Bergen). This entry was posted in RT Collection and tagged 421, 657, 676, Electro-Motive Division, GP38-2, GP38AC. Bookmark the permalink.