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Mack Introduces Split-Shaft Functionality for mDrive HD Transmission

Mack Trucks has introduced a new split-shaft functionality for its Mack mDrive HD automated transmission, an online tool to configure Granite and Granite MHD trucks, and a loyalty rewards program for National Ready Mixed Concrete Association members.

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Hill Climbing's Easy for mDrive and 'Downsped' MP8 Diesel

The Pinnacle-pulled rig weighed close to 80,000 pounds. So how did it pull the hills at such low engine speeds? With 1,860 lb-ft of torque, and with no more speed loss than one would find with higher revving engines.

Mack mDrive 13-Speed Standard on Granites

An extra crawler gear aids startability on upgrades, while a 14-speed version allows very slow creeping.

QuickSpin: Mack's mDrive HD

What’s better than an mDrive automated manual transmission if you’re running Mack dump or mixer trucks? An mDrive HD, for (extra) heavy duty, the company says. Senior Editor Tom Berg's driving impressions.

Mack's 12-Speed mDrive HD Transmission Beefed Up for Vocational Applications

LAS VEGAS -- A heavier-duty version of Mack's mDrive automated manual transmission will be standard on the Granite truck starting this March.

Ultimate Test Drive Video: Mack Pinnacle's Fuel-Saving Powertrain

In this three-part video test drive of a 2013 Mack Pinnacle, Equipment Editor Jim Park rides with Dave McKenna, Mack's director of powertrain sales. He explores the mDrive automated manual transmission and the Mack SuperEconodyne fuel-saving powertrain package.