2012 Mack GU813 Granite Heavy Haul Day Cab Truck Tractor. VIN 1M1AX16Y9CM016066. Mack MP8 Diesel Engine. 505 HP. 18 Speed Manual Transmission. Tri-Axle. Sliding Fifth Wheel. Aluminum Wheels. Wet Kit. Lift 3rd Axle. Double Frame. Headache Rack. 315/80R22.5 Rubber. Miles read: 281,688 miles.