GP40-2s 763, 768 and 774 by Frisco.org Posted on January 24, 2014 GP40-2s 763, 768 and 774 GP40-2s 763, 768 and 774 at Tulsa, Oklahoma in November 1979. AT&SF 5675 is an SD45-2 (Trackside Slides). This entry was posted in Slides and tagged 763, 768, 774, Electro-Motive Division, GP40-2. Bookmark the permalink.