mDrive HD Transmission

    Feb. 4, 2015
    Related To:
    Mack M Drive Hd Transmission 54d3edcab3500

    The Mack mDrive HD Transmission is engineered to work with Mack MP7 and MP8 engines. The 12-speed transmission has an automated clutch, and operation is controlled through a dash-mounted shift pad. For more demanding maneuvers, the shift pad can be operated manually to hold a gear, downshift or upshift. Available in overdrive and direct drive, the lightweight transmission continuously monitors changes in grade, vehicle speed, throttle position, acceleration, torque demand and gross vehicle weight, and it automatically chooses the best gear for the road condition. The transmission-mounted oil cooler helps maintain an optimal operating temperature, and, if stuck, the Rock Free feature allows the driver to rock the truck back and forth by pumping the accelerator.

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