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Who builds GM transmissions?


General Motors (GM) is one of the largest automobile manufacturers in the world, producing a wide range of vehicles for various markets. A critical component of any vehicle is its transmission, which plays a vital role in transferring power from the engine to the wheels. But who exactly builds GM transmissions? Let’s dive into the details.


GM's In-House Transmission Manufacturing


GM manufactures many of its transmissions in-house through its own facilities. These facilities are strategically located across North America and other parts of the world to support their global vehicle production. GM's in-house production ensures that their transmissions meet the company's high standards for quality and performance. Some of the key GM transmission manufacturing plants include:



  • Toledo Transmission Operations (Ohio, USA): This facility produces a variety of transmissions, including the 6-speed and 8-speed automatic transmissions used in many GM vehicles.

  • Ramos Arizpe Transmission Plant (Mexico): This plant manufactures transmissions for GM's smaller vehicles and crossovers.

  • St. Catharines Propulsion Plant (Ontario, Canada): Known for producing engines and transmissions, this facility supports GM's operations in North America.


These facilities are equipped with advanced technology and staffed by skilled workers to ensure the production of reliable and efficient transmissions.


Collaborations with Third-Party Manufacturers


In addition to in-house production, GM also collaborates with third-party manufacturers for certain transmissions. These partnerships allow GM to leverage specialized expertise and technology. One notable partner is Aisin Seiki, a Japanese company known for its high-quality automatic transmissions. Aisin has supplied transmissions for select GM vehicles, particularly in cases where GM sought specific performance characteristics or cost efficiencies.


Another key partner is Allison Transmission, which has historically provided heavy-duty transmissions for GM's commercial and military vehicles. These collaborations help GM diversify its transmission offerings and cater to a wide range of vehicle applications.


Why GM's Approach Matters


GM's dual approach of in-house manufacturing and strategic partnerships ensures that their transmissions are both innovative and reliable. By maintaining control over production while also collaborating with industry leaders, GM can meet the diverse needs of its customers, from compact cars to heavy-duty trucks.


Whether you're driving a Chevrolet, GMC, Cadillac, or Buick, you can trust that the transmission in your GM vehicle has been carefully designed and manufactured to deliver optimal performance and durability.


Frequently Asked Questions

Who makes OEM parts for GM?


GM Genuine Parts and ACDelco are proud to work together as the only source for true General Motors Original Equipment and aftermarket parts. That's a responsibility we don't take lightly, as we constantly strive to earn drivers' vote of confidence by: Building and innovating on the quality of GM Parts.



Does Allison make Ford transmissions?


Yes, an Allison transmission is designed to provide smoother shifts, greater durability, and improved fuel efficiency, all contributing to enhanced vehicle performance. What specific components are included in the Allison conversion kit for Ford vehicles?



Are Allison transmissions made by GM?


Following Allison's untimely death in 1928, General Motors acquired Allison Transmission in a partnership that would last almost eighty years. In 2007, a cash-starved GM sold Allison to Onex Corporation and The Carlyle Group for $5.6 billion, a move that preceded GM's bankruptcy reorganization in 2009.



Is Allison still owned by GM?


In 2007, GM sold Allison Transmission to private equity firms Carlyle Group and Onex Corporation for US$5.6 billion.



What is the problem with the GM 10 speed transmission?


The GM 10-speed transmission investigation claims that the transmission causes issues such as harsh or erratic shifting, loss of power, jerking between gears, hesitation, clunking or whining noises, and trouble shifting into DRIVE or REVERSE.



What transmission is behind the 3.0 Duramax?


10-speed automatic transmission.



Which transmission is better, Aisin or Allison?


When you compare the Aisin vs. Allison transmission, it's easy to see that while both offer similar gears and sizing, the Aisin shines when it comes to towing power.



Who makes GM transmissions?


General Motors (GM) is an American car manufacturing company. It manufactures its own automobile transmissions and only purchases from suppliers in individual cases.



Is GM more reliable than Ford?


GM shines, Ford fails to impress in new J.D. Power dependability study ranking. Ford CEO Jim Farley has said again and again it's essential the automaker improve quality, and the new 2023 J.D. Power U.S. Vehicle Dependability Study released Thursday shows Ford and Lincoln among the worst brands.



Are GM and Ford transmissions the same?


While each automaker will have their own version of the transmission, with unique software and other proprietary tweaks, the basic units are the same.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.