Navistar N13, 430 HP, Air High-Lift Tailgate, Jake, Allison 4500 Automatic, 20,000 # FA, 70,000# RA, Aluminum Wheels, 425/65R22.5 Front Tires, 11R22.5 Rear Tires, 3 Steerable Air Lift Pusher Axle, Dual Steering Boxes, Hendrickson Haulmaax Rubber over Walking Beam Suspension, 272 in Wheelbase, Godwin 20 ft Long x 54 in High Steel Body, Electric Roll Tarp. Delivery Available!