Cat 3208 V8 Diesel Engine, 6577 Engine hrs, 13-Speed Manual Transmission, 20000 lb Front Axle, 46000 lb Rears, 77000 lb GVWR, 425/65R22.5 Front Tires, 11R22.5 Rear Tires, Air Lift Pusher Axle, Spring over Walking Beam Suspension, 205 in Wheelbase, PTO, 8 cyd Mixer Unit