2021 MACK, GRANITE 64FR, Heavy Duty Trucks - Dump Trucks, MACK MP8, Manual, 2021 Mack Granite Tri Axle Dump Truck. MP8 455HP with a Mack T310M 10-Speed Manual Transmission. 20k Front Axle and 44k Rear Axle. 4.19 Gear Ratio. Great Work Truck with Extremely LOW MILES. Call Today and Ask About Financing!, 455 Horse Power, Camelback Suspension, Aluminum Wheels, 238 Wheel Base, , Axle, 4.19 Ratio, , VIN 1M2GR4GC9MM019362