Gearstar Performance

Custom Transmission Build Team

torque converter matching
dyno testing
transmission installs
GM performance automatics
Ford performance automatics
Mopar performance automatics

Gearstar Performance Transmissions has been hand-building high-performance automatics in Akron, Ohio since 1996. Every unit is assembled start to finish by one builder, matched to the customer's engine, gearing and intended use, then dyno-tested before it ships. The build team writes here about transmission specs, install procedures, torque converter matching and what actually holds up behind real power.

GM Turbo 350 Transmission Options

Gearstar Performance December 9th, 2021 5 minute read

The GM Turbo 350 transmission is a 3-speed, automatic shift transmission and one of the greatest automatic transmissions ever built. It was introduced in...

What Goes Into a Transmission Rebuild?

Gearstar Performance November 30th, 2021 6 minute read

Knowing what goes into a transmission rebuild is to your advantage, whether a well-trained mechanic is doing it for you or you are handling it on your own....

What Is a Dual Clutch Transmission?

Gearstar Performance November 20th, 2021 7 minute read

A dual-clutch transmission (DCT) refers to a particular type of AMT (Automated Manual Transmission), i.e., one that uses 2 clutches to 'preload' the...

Transmission Rebuild vs. Remanufactured

Gearstar Performance November 10th, 2021 6 minute read

Your transmission has unceremoniously gone out, and you have no choice but to get a new one. However, repairing a faulty transmission is possible, which...

Benefits of Going To a Custom Transmission Shop

Gearstar Performance November 1st, 2021 6 minute read

When you have trouble with your manual or automatic transmission, the first port of call is usually a general auto repair shop. However, taking your...

Everything to Know About the Rebuilt 4L60E Transmission

Gearstar Performance October 30th, 2021 7 minute read

Are you having transmission problems? You may be thinking the time is ripe for you to get a brand-new vehicle. However, the benefits of rebuilding your...

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