SD40-2s 955 and 956 by Frisco.org Posted on December 13, 2018 SD40-2s 955 and 956 SD40-2s 955 and 956 at Memphis, Tennessee on November 2, 1978. This entry was posted in Slides and tagged 955, 956, Electro-Motive Division, SD40-2. Bookmark the permalink.