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Automated Manual Transmissions

Test Drive: Paccar's New Automated Transmission

Paccar is the latest North American truck manufacturer to bring a proprietary automated transmission to market. HDT's Jim Park got a sneak preview of the new 12-speed Paccar Automated Transmission ahead of its official launch. Here are his driving impressions.

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Automated Transmissions Yesterday, Today, and Tomorrow

Automated manual transmissions surpassed even the most optimistic predictions for adoption. How will the next generation of smarter, faster, and better connected AMTs boost safety, efficiency and, fuel economy?

Why U.S. Xpress Uses Automated Manual Transmissions

Automated manual transmissions rule the roost at U.S. Xpress today. Out of some 7,000 U.S. Xpress trucks running today, the fleet is down to just 16 “legacy” models still equipped with manual transmissions.

Volvo Does it Again With Paraglider Video

In Volvo's latest promotional stunt video, the goal is to maintain a precise speed that allows pro paraglider Guillaume Galvani to stay in flight behind the Volvo FH rig on a highway in the Croatian Alps.

Detroit to Offer PTO Option for DT12 Transmission

Detroit Diesel is now offering a power take-off option for its automated manual transmission, the Detroit DT12.

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.

Driving Volvo's I-Shift with Crawler Gears

Volvo’s new Crawler Gears option for the I-Shift automated manual transmission puts one or two extra-low ratios at the driver’s fingertips – or thumb tip, actually.

Using Crawler Gears on Volvo's I-Shift Transmission [Video]

Volvo’s new Crawler Gears option for the I-Shift automated manual transmission puts one or two extra-low ratios at the driver’s finger tips – or thumb tip, actually. This is especially useful for vocational trucks like dumpers and mixers. Volvo’s Wade Long explains how to choose the lower gears using the shift selector.

4 Trends Driving Vocational Truck Design

An explosion of new technology has added an unprecedented range of choices that are changing the way vocational fleets spec and work their trucks.

Mack mDrive 13-Speed Standard on Granites

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