This is a 2005 pre-emission cab and chassis with an Allison automatic with a PTO Gear (PTO capable) - 3000 RDS transmission model. This truck comes with a diff-lock switch, 12,000 lb front axle, 21,000 lb rear axle, 175 wheelbase, 106 back of cab to center of axle, 16-feet of frame, DT-466 engine, one 60-gallon fuel tank. This is a clean southern truck ready for work. This also comes with a Nationwide Warranty covering major components of the drivetrain. I have 3 of these trucks that are identical; came out of same fleet.