 In the mid 1980s to early 1990s Guilford Rail System (now Pan Am Railways) started painting and renumbering their GP9 fleet into the Guilford Transportation scheme with the Springfield Terminal name on the side.Pan Am Railways still rosters 6 of the 50 GP9s that are left, the rest either having been scrapped or sold.The last 6 GP9s still rostered on PAR are 51, 52, 62, 71, 72, and 77.