Cummins ISB 6 Cylinder 5.9 L Diesel 225 hp Engine, 2000 US EPA Label, Allison MT-653DR Automatic Transmission, 8000 lb Front Axle, 17500 lb Rears, Meritor RS-17-144 Drive Axles, 3.73:1 Axle Ratio, 25500 lb GVWR, 11R22.5, Airliner Air Ride Suspension, 148 in Wheelbase, PTO, 10 ft Long Body, Electric Roll Tarp, Pintle Hitch