V8 6.0 L Diesel Engine, 2006 US EPA Label, CARB Compliant, Positive Air Shutoff, Automatic Transmission, 7000 lb Front Axle, 13660 lb Rears, 17950 lb GVWR, 245/70R19.5, Spring Suspension, 106 in Cab to Axle, 156 in Cab to End of Frame MECHANICAL ISSUES. THIS UNIT HAS ALTERED EMISSIONS.