Cat C15 6 Cylinder Diesel Engine, Positive Air Shutoff, Engine Brake, Eaton Fuller RTLO-18918B 18-Speed Manual Transmission, Triple Differential Locks, 20000 lb Front Axle, 57999 lb Rears, Dana T69-170HP Drive Axles, 4.30:1 Axle Ratio, 78000.0 lb GVWR, Air Ride Cab, 42 in Flat Top Sleeper Cab, Aluminum Wheels, 425/65R22.5 Front Tires, 11R24.5 Rear Tires, Dual Steering Boxes, Neway Air Ride Suspension, 295 in Wheelbase, PTO, Hydraulic Oil Cooler, 2007 Comptank 22670 L ...