Gearboxes Transmissions

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Welcome to the online home of Auto Gear Equipment Motorsports, where the last company actively designing and improving four-speed manually-shifted gearboxes reveals all.

We believe that ‘driving a stick’ — controlling the torque of a big V8 with foot and hand — is one of those priceless opportunities to give all-conquering technology the finger that, no matter where the car companies go, racers and enthusiasts will continue to demand. That’s why we do it — to make sure you have the chance. And, because, quite honestly, after seventy years in the business, we’re very good at it.


There are five more questions almost everyone asks.

We sell parts for all Muncie designed transmissions. Please give us a call at 315-471-8141. In 2024 we will be introducing the Muncie Store where you can order spare and replacement parts directly without having to call us. Of course you can call us at any time; we would love to share our love of Muscle Cars with you.

Of course we can. You can either call us at 315-471-8141 or complete the EZ Spec Form at the bottom of the first page. Our Team can help you assess your current transmission, upgrade it or design a new one.

For many years, big American V8’s, with their awesome torque and wide power bands, were the envy of the automotive world. Often what impressed the enthusiasts and engineers was how little the cars they powered needed to shift. When did shifting become more important than driving? We’re not persuaded. More gears are better only when they’re needed and most of our customers cannot actually use more than four. That said, we agree that some racing or high speed road applications might benefit from five gears properly spaced.

For more than 25 years, our four speed gearing is supplied by the Italian firm Euroricambi and their A.M. Gears subsidiary (the near-legendary craftsmen of Antonio Masiero). All of castings are poured and machined in the United States. Our synchronizer rings, bearings, oilseals and small parts are supplied by leading name brand vendors worldwide. For us, quality and performance are the most important part of making the world’s best 4 speed.

If they were only that good we’d scrap them! Manufacturing advances such as CNC machining, diamond cutting tools, cleaner steels, and better control of heat treatment enable us to do things General Motors could only dream of doing in 1965. There was a saying then “If it’s to print it goes to service, if not, it goes to production”. That’s why we don’t ‘blueprint’ anymore. The Team at AutoGear have designed and build parts which far exceed the original designs with better materials, manufacturing processes and testing capabilities.

Every part that is made for our manual transmissions is manufactured on world-class equipment, We source to partners who continually invest in the best equipment and processes to assure that parts are made to our prints and specifications. All our gears, shafts and castings are controlled by AutoGear prints. Furthermore, wherever possible mating parts are sourced with a single vendor so there’s undivided responsibility that they run properly together.

Spec Your New 4-Speed (or Muncie Gearset)

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