7600, Heavy Duty Trucks - Tow Trucks - Roll-Back, Cummins ISM, Automatic, U10390 is a gorilla in the mist. As well as being a heavy duty roll back, you will find this truck has all the right specs. -Eaton Auto Shift Transmission -Cummins Engine -Hendrickson air ride suspension -20,000lb front axle / 40,000lb rear axle -32 long deck -Ramsey winch with hitch at rear, 330 Horse Power, Hendrickson Suspension, Wheels, 285 Wheel Base, , Tandem Axle, Ratio,