CAT C7 6 Cylinder Diesel 250 hp Engine, 2006 US EPA Label, Manual Transmission, 12000 lb Front Axle, 21000 lb Rears, 295/75R22.5 Front Tires, 11R22.5 Rear Tires, Spring Suspension, 194 in Wheelbase, PTO, 107 in Cab to Axle, 157 in Cab to End of Frame