Double Differential Locks, 18000 lb Front Axle, 46000 lb Rears, 64000 lb GVWR, Air Ride Cab, Aluminum Front Wheels, 385/65R22.5 Front Tires, 11R22.5 Rear Tires, Dual Steering Boxes, Double Frame, Air over Walking Beam Suspension, 254 in Wheelbase, PTO, UHE U2225 ROH Roll-Off Body, 23 ft Hoist