Detroit Series 60 6 Cylinder 14.0 L Diesel 515 hp Engine, 2006 US EPA Label, 12646.4 Engine hrs, Air Conditioner, Cruise Control, Engine Brake, Allison Automatic Transmission, Double Differential Locks, 36000 lb Front Axle, 100000 lb Rears, Planetary Drive Axles, 9.59:1 Axle Ratio, 136000 lb GVWR, Air Ride Cab, Aluminum Wheels, 445/80R25 Front Tires, 14.00R25, Rear Tires, Chalmers Suspension, 396 in Wheelbase, PTO, 26 ft x 96 in Bed, Center Roll, Tail Roll, 20 ft Gin Poles, Rufnek Winch, Flip-Over 5th-Wheel