Buy Custom Built Premium Performance Transmissions - GearStar

The Ultimate, Or Nothing.

Heart pounding performance. 20+ years and counting. Welcome to the new Gearstar Performance.

Trusted By The Best.

Strap yourself in. Gearstar's precision, unrivaled craftsmanship takes your ride to the max level.

Legends Never Die.

Strap yourself in. Gearstar's precision, unrivaled craftsmanship takes your ride to the max level.

Zero Compromises.

Every transmission, every detail, everytime. Gearstar is engineering excellence.

Absolute Craftsmanship.

Strap yourself in. Gearstar's precision, unrivaled craftsmanship takes your ride to max level.

World-Class High Performance Automatic Transmissions



If you are rebuilding your existing vehicle or restoring and old vehicle to make it look and run like new again, you might want to consider choosing the 700R4 GM transmission because of the benefits that this type of transmission can offer you, including the performance, better fuel mileage, the overdrive and the added value that it brings to your vehicle. With its powerful 350 horsepower and up to 325 ft-lbs of torque, this is a compelling performance transmission that will significantly increase the efficiency and deliver the acceleration and the speed to your “pride and joy” that you desire. Gearstar Performance Transmissions has been building high performance transmissions that are manufactured to your vehicle’s specific requirements for over the last 20 years, creating long lasting relationships with all of our valued car enthusiasts.

What We Do

Gearstar Performance Transmissions is known as the number one rated high performance transmission specialist where we build our transmissions, such as the GM 700R4, with the professional know how and the pride in craftsmanship that we put into every one of our custom built transmissions. Our experienced transmission builders each work on one transmission at a time from start to finish to ensure consistency and quality during the building process.  We only build high performance transmissions, because that is where our true passion lives, in our minds and in our souls. We realize that you care about your vehicle and it can be hard to find the right place that you can put your trust in to take care of it the way that you would, which is why we always treat it as if it were our own vehicle, giving it the utmost care and respect that it deserves.

All of our high performance transmissions are built with the top parts that are proudly made in the USA, giving us an even wider edge that no other transmission company can match or duplicate. All of our high performance transmissions are built one at a time, according to each of our clients’ specifications and requests. When we say we never shelf a transmission, we mean just that, because we don’t start our job until you come in and advise us of what you’re looking for you car to do, as far as performance, speed and long lasting endurance. We also test your new transmission before it ever leaves our shop to ensure that it’s in perfect running order.

Contact Us

If older model vehicles are your passion and you wouldn’t allow anything less that the very best custom built high performance transmission, such as the GM 700R4, installed in your vehicle, Gearstar Performance Transmissions would like to invite you to visit our web site at, and check out some of best transmissions that you ever seen. On our home page, you can leave us your contact information and a brief description of your vehicle and we'll get right back with you to see how we can assist you. You can also call us at 800.633.2353 and speak with one of our friendly and knowledgeable team members. 



Gearstar Performance Transmissions
132 N. Howard St. ; Akron, OH 44308

View Larger Map
We Specialize In:

We welcome your comments!

700r4 700r4 700r4 700r4 700r4