Explore allison doc subscription categories and manage your renewals, user assignments, and account settings with ease. 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 This development will see the chevy silverado hd and gmc sierra hd models drop the. 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. Your technicians can learn and speak basic allison transmission maintenance in our new learning center
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