GM and Allison Transmission Will Separate After This Year.

      Chevrolet

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      For years, General Motors trucks have featured Allison Transmission branding, but this will come to an end on December 31, 2025. The two companies could not agree on renewing their long-standing licensing arrangement into the next year and beyond. As a result, the well-known badge will disappear; however, all Chevy Silverado and GMC Sierra trucks with a 2500 rating and above will continue to use the same 10-speed automatic transmissions as before.

      This is because GM manufacturers these transmissions, which have simply carried the Allison name until now. The arrangement was only a branding agreement that kept the Allison label in play after GM adopted its own 10-speed design in 2018. Although this design was validated by Allison, it did not originate from the transmission company.

      TFL Truck published a letter from GM to its dealerships detailing the next steps. It states, “After the License Agreement expires, GM and its authorized dealers have a single 180-day period, from January 1, 2026, to June 29, 2026, to market, advertise, and sell their remaining stock of products featuring the licensed Allison marks, as long as all usage adheres to the terms of the License Agreement.” After this time, dealers must “remove all digital and website references, take down point of sale materials, and cease the dissemination of any advertising that utilizes or refers to Allison marks.”

      Additionally, any new truck inventory still displaying Allison branding will be updated with a non-Allison badge by June 29 of next year, making this a significant undertaking.

      Chevrolet www.thedrive.com

      When approached for a statement by The Drive, a Chevrolet representative said:

      “We regularly update our products, including badging and brand partnerships. The transmission itself and the truck’s performance will remain unchanged—it’s the same 10-speed automatic we’ve provided in current and previous model years.”

      GM's partnership with Allison Transmission extends back to the mid-20th century, although Chevy and GMC pickups first adopted Allison transmissions in 2001, paired with the LB7 Duramax diesel engine. This continued until 2018, meaning trucks with the Duramax engine codes LB7, LBZ, LLY, LMM, and LML were delivered from the factory with Allison-designed and built transmissions. Trucks from the 2018 model year and beyond equipped with the L5P Gen 1 and Gen 2 Duramax engines have exclusively used GM's 10-speed transmissions with Allison branding.

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