CH613, Heavy Duty Trucks - Dump Trucks, Mack MP8-505, 13 Spd, Very Nice Mack Dump truck, 17' Aluminum Cornhusker Box with a Pusher Axle, this truck has had very good care., 505 Horse Power, Mack Suspension, All Aluminum Wheels, 248 Wheel Base, 315-80R22.5/ 11R22.5/ 455-55R22.5, Tandem Axle, Ratio,