357, Heavy Duty Trucks - Cab and Chassis Trucks, Caterpillar , Automatic, CAB and CHASSIS Engine Series 3116 Engine Capacity L6, 6.6L (403 CID) Brake System Air GVWR Class 8: 33,0001Lbs and Over (RY43), Horse Power, Suspension, Wheels, Wheel Base, , Single Axle, Ratio,