Allison products are specified by over 250 vehicle manufacturers and are used in many market sectors, including bus, refuse, fire, construction, distribution, military, and specialty applications. After decades of gm hd trucks using allison transmissions, the partnership is ending on december 31, 2025 due to not coming to an agreement. After more than two decades working together, general motors and allison transmission are officially splitting up. The longstanding partnership between general motors (gm) and allison transmission is set to end after this year This development will see the chevy silverado hd and gmc sierra hd models drop the. Your technicians can learn and speak basic allison transmission maintenance in our new learning center
Gm is taking the unprecedented step of removing some of the badging on its unsold trucks starting in 2026 Here's how gm ended up in this weird situation.
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