After decades of gm hd trucks using allison transmissions, the partnership is ending on december 31, 2025 due to not coming to an agreement. The longstanding partnership between general motors (gm) and allison transmission is set to end after this year After more than two decades working together, general motors and allison transmission are officially splitting up.
Allison Parker Wiki
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.
