 The SD40-2XR designates 15 SD40 and a SDP40 rebuilt to Dash-2 standards for Montana Rail Link.The SD40E is an SD50 rebuilt by the Norfolk Southern Railway and derated to 3000 HP (equivalent to an SD40-2).Santa Fe #5008 (built 1966 as ATSF 1708) is preserved at the Walt Disney Hometown Museum in Marceline, Missouri.