https://matruck.com/allison-transmissions/
Allison Transmissions Authorized Allison Transmission Dealer & Service Center Allison fully automatic transmissions are the most effective and reliable...
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https://www.autoguide.com/auto/manufacturers/gm/general-motors-and-allison-transmissions-are-divorcing-next-year-44627152
Nov 6, 2025 - After more than two decades working together, General Motors and Allison Transmission are officially splitting up.
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