Mack MP8 Diesel Engine, Engine Brake, Mack 8LL Transmission, Differential Lock, 22000 lb Front Axle, 64000 lb Rears, 399826 kg GVWR, Air Ride Cab, 425/65R22.5 Front Tires, 12.00 R24 Rear Tires, Double Frame, Spring Suspension, 265 in Wheelbase, PTO, smart trailers 22 ft 4 in Long x 5 ft High Steel Body, 20 m3, Capacity, Round Bottom