Need the Best Remanufactured Transmissions?
We’ve Got You Covered
Helping Auto Repair Shops
Like Yours Thrive
You don’t have to rebuild transmissions in house – there may be a better way. Here at Ace Transmission, we produce thousands of high-quality remanufactured transmissions, each year, right here in the American heartland. With hundreds of units in stock, the one you need usually ships the same day. And we stand behind our work with an amazing nationwide warranty. Increase your shop’s productivity and profits by becoming a wholesale buyer today.

Remanufactured vs rebuilt transmissions

Does your shop still rebuild transmissions one by one?
You can increase productivity and profits by doing things differently.
Made in the American Heartland
Why choose ACE remanufactured transmissions?
The more money your business generates, the greater the financial impact you can have on your family and your employees. We are passionate about creating products and systems that help you increase sales volume, decrease costs, and build an extremely valuable business.
Wow your customers with an amazing nationwide parts-and-labor warranty – free with every unit
Since we remanufacture transmissions in our own factory, we’re confident each unit will stand the test of time. That’s why we include a fantastic warranty at no extra charge. You get to offer this great selling point to your customers and look like a hero!

Learn how to run a better auto repair shop
We founded our own transmission repair shop in 1981. We’ve survived and thrived through good times and bad for over 40 years. Now, we want to share decades of real-world experience with you!
ATR Valve Body Department – Upcoming Additions
By Andrew Kanel on June 18, 2025 The ATR Valve Body Department will soon be expanding its lineup with the addition of two newvalve body applications: the Ford 6F35 and the GM 6T70/75. These units are known to experiencecommon valve failures, particularly in the circuits that supply fluid to solenoids—critical…
Core Return Procedures
By Sarina Summers on June 12, 2025 To help streamline our processes and reduce confusion, we have updated our procedures forhandling core pickups on individual core returns, effective immediately. This is not effective onbulk core returns, those procedures still remain the same. Core pickups will now only be scheduled on…
Helping Customers Make the Right Transmission Choice
By John Goulden on June 18, 2025 Deciding when and how to choose an upgraded transmission can be confusing. Our goal is toensure your customers are well taken care of—and that their warranty remains fully protected. The flowchart below is designed to help determine when an upgraded transmission is the…

About ACE Transmission: Living the American Dream
ACE Transmission grew from a tiny, one-man shack to become the undisputed #1 transmission repair and remanufacturing company in Southwest Missouri. Now we provide reman units to shops like yours across the USA.