Paccar PX-6 6 Cylinder 6.7 L Diesel 300 hp Engine, 2012 US EPA Label, Requires Diesel Exhaust Fluid, 8050 Engine hrs, Allison 2100 Automatic Transmission, Differential Lock, 10000 lb Front Axle, 20000 lb Rears, Dana Spicer P20060S Drive Axles, 5.29:1 Axle Ratio, 26000 lb GVWR, 295/75R22.5, Paccar Air Ride Suspension, 240 in Wheelbase, 22 ft x 92 in Bed, Liftgate