The Mack Granite trucks now come standard with the new mDRIVE HD 13-Speed gearbox. Now that is the Mack name for the I-Shift Crawler gearbox as we know it in Europe. Her is the official release of Mack: GREENSBORO, NC (May 9, 2016) – In response to increasing customer demand, Mack Trucks today announced its…… Continue Reading