BUSINESS CLASS M2 112, Heavy Duty Trucks - Conventional Trucks w/o Sleeper, Cummins ISL-G, Automatic, Clean truck with 76 DGE , block heater, traction control, several matched units available with 270-320,000 miles., 320 Horse Power, Air Ride Suspension, All Steel Wheels, 185 Wheel Base, 11R22.5LP, Tandem Axle, Ratio,