Mack Trucks’ new 13-speed mDrive HD automated manual transmission (AMT), which features a creeper gear, will be standard equipment on 2017 Mack Granite model trucks, the company announced Monday. The ...
GREENSBORO, N.C. — Mack Trucks announced today it that its mDrive HD 13-speed automated manual transmission (AMT) will be standard on Mack Granite models. The AMT features a low ratio creeper gear and ...