6 Cylinder Diesel Engine, Manual Transmission, 12000 lb Front Axle, 40000 lb Rears, 66000 lb GVWR, 11R22.5 Front Tires, 11R22.5 Rear Tires, Hendrickson Spring over Walking Beam Suspension, 223 in Wheelbase, PTO, 15 ft 10 in Long x 3 ft 7 in High Steel Body