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.

Top 5 Performance Transmission Pitfalls to Avoid

Top 5 Performance Transmission Pitfalls to Avoid

Gearstar Performance 5 minute read

When it comes to looking after the transmission in your car, you really can't afford to make any mistakes. You might think that it would be hard to make...

2017 SEMA Show Was 'Auto' This World

2017 SEMA Show Was 'Auto' This World

Gearstar Performance 5 minute read

This year's annual SEMA Show recently wrapped up in Las Vegas, drawing industry veterans and car fanatics alike to see all the latest and hottest auto...

Automatic Transmission Fluid Is Vital to Car Performance & Longevity; Choose Wisely

Automatic Transmission Fluid Is Vital to Car Performance & Longevity; Choose Wisely

Gearstar Performance 4 minute read

Regardless of the car you drive, it's important to use the proper transmission fluid. And, if your car has a high performance automatic transmission, it's...

Gearstar Sponsored

Gearstar Performance 2 minute read

The River of Life Church, located in Chagrin Falls Ohio, boasts the annual ROL Car Show every summer.  The cold weather in North East Ohio makes the...

Gearstar Dyno Tests

Gearstar Dyno Tests

Gearstar Performance 2 minute read

Gearstar performance transmissions knows the importance of getting it right the first time.  For this reason, all Gearstar transmissions are custom built, by...

Gearstar Transmissions Maximize Potential

Gearstar Transmissions Maximize Potential

Gearstar Performance 2 minute read

Gearstar builds custom one off performance transmissions engineered to perform. Think of Gearstar like a custom engine building shop but for transmissions...

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