Isuzu 6HK1-TC 6 Cylinder 7.8 L Diesel Engine, Air Conditioner, 6-Speed Manual Transmission, 1000 lb Front Axle, 23000 lb Rears, 33000 lb GVWR, 11R22.5 Front Tires, 11R22.5 Rear Tires, Spring Suspension, 189 in Wheelbase, PTO, 122 in Cab to Axle, 161 in Cab to End of Frame