DT466 6 Cylinder 7.6L Diesel Engine, Air Conditioner, Cruise Control, Allison Automatic Transmission, 12000 lb Front Axle, 20000 lb Rears, 32000 lb GVWR, 11R22.5 Front Tires, 11R22.5 Rear Tires, Air Ride Suspension, 147 in Wheelbase