Paccar PX-8 6 Cylinder Diesel Engine, Engine Brake, Allison 3000 Automatic Transmission, Differential Lock, 12000 lb Front Axle, 21000 lb Rears, Dana P22060S Drive Axles, 5.29:1 Axle Ratio, 33000 lb GVWR, Air Ride Cab, Aluminum Wheels, 11R22.5, Air Ride Suspension, 236 in Wheelbase, PTO, 21 ft x 102 in Bed, 8000 lb Winch, Hydraulic Wheel Lift, Hour Meter Reads 5170