Mack MP8 6 Cylinder 12.8 L Diesel 415 hp Engine, 2012 US EPA Label, Requires Diesel Exhaust Fluid, Mack mDRIVE Transmission, 14320 lb Front Axle, 44000 lb Rears, 58320 lb GVWR, Air Ride Cab, Aluminum Outer Wheels, 11R24.5, Camelback Suspension, 224 in Wheelbase, OX Bodies 16 ft 6 in Long x 4 ft 9 in High Steel Body, Flat Bed, Electric Roll Tarp