Trucks: B-B AAR Type A
Engine: 8-567C, 900 hp
Gear ratio: 62:15
Maximum speed: 40 mph
Operating weight: 249,000 lbs.
Tractive effort: 36,000 lbs
Length: 44′ – 5″
| Road no. | Class | Previous road no. | Retired | Notes / disposition |
| 400 | GY-9d | 7600 | Mar 18 91 | To Andrew Merriliees, to Lambton Diesel Services (Sarnia, ON) |
| 401 | GY-9d | 7601 | Oct 30 84 | |
| 402 | GY-9d | 7602 | Mar 18 91 | to Esso Agricultural Chemicals (Redwater, AB) 1994 |
| 403 | GY-9d | 7603 | Mar 18 91 | To Southern Marine Equipment (Greenville, MS) 1998, moved to CLN (Charny, QC), to IVACO (L’Orignal, ON) 1999 |
| 404 | GY-9d | 7604 | Mar 18 91 | To Esso Chemicals (Beamer, AB) |
| 405 | GY-9d | 7607 | Mar 18 91 | To National Railway Equipment (Dixmoor, IL) 1991, to Northern Indiana Public Service 1994 |