Paccar PX-8 6 Cylinder 8.3 L Diesel 315 hp Engine, 2009 US EPA Label, 4938.1 Engine hrs, Air Conditioner, Cruise Control, Digital Mirrors, Engine Brake, Allison 3000 Automatic Transmission, Differential Lock, 13000 lb Front Axle, 20000 lb Rears, Dana Spicer P20060S Drive Axles, 4.88:1 Axle Ratio, 33000 lb GVWR, 295/75R22.5, Hendrickson Air Ride Suspension, 260 in Wheelbase, 24 ft x 102 in Bed