The longstanding partnership between General Motors (GM) and Allison Transmission is set to end after this year. This ...

Next year, heavy-duty GM trucks will lose their Allison badges, even though the transmissions themselves won't change.

The two brands have worked together for decades, but they couldn't reach an agreement to extend their longstanding licensing deal.

When GM launched new-generation trucks for the model year 2020, the Allison automatic was gone. The trucks still got the badge, but it was a new 10-speed automatic jointly developed by Ford and GM. So ...

Break up alert! General Motors is done with Allison Transmission as their contract ends. They'll no longer wear that ...

After more than two decades working together, General Motors and Allison Transmission are officially splitting up.

While GM is preparing to retire the Allison Transmission branding from its HD pickups, the Chevy Silverado MD will continue ...

There's a new six-speed that's designed to work with the stock DCT packaging found in one of Chevrolet's most divisive ...

DETROIT (AP) -- General Motors and Ford are putting aside their longstanding rivalry to work together to develop a new generation of fuel-efficient automatic transmissions. The companies said Monday ...

General Motors Corp. on Wednesday began producing a new generation of six-speed transmissions it said are designed to improve fuel economy, reduce cabin noise and give a smoother ride. The Hydra-Matic ...