GP35 716, GP38AC 644 and SD45 928 by Frisco.org Posted on September 28, 2015 GP35 716, GP38AC 644 and SD45 928 GP35 716, GP38AC 644 and SD45 928 at Springfield, Missouri in July 1978. This entry was posted in RT Collection and tagged 644, 716, 928, Electro-Motive Division, GP35, GP38AC, SD45. Bookmark the permalink.