T300, Heavy Duty Trucks - Cab and Chassis Trucks, Cummins 8.3, 10 Spd, This heavy duty roll back has a 315hp Cummins engine with low miles. Come check it out, it ready to go to work., 315 Horse Power, Air Ride Suspension, All Steel Wheels, 246 Wheel Base, 22.5, Tandem Axle, Ratio,