Built to Hold
Build guides, transmission tech, and install notes from the Gearstar shop floor. Every unit we ship is assembled by one builder, matched to your combo, and dyno-tested before it goes out the door. This is where we show the work: what holds, what grenades, and how to spec it right the first time.
AOD Transmission Buyers' Reference Guide
There was perhaps nothing more exciting out of the 80’s than the inception and incorporation of overdrive into automatic and manual transmissions. How can...
Top 5 Performance Transmission Pitfalls to Avoid
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
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
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
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 performance transmissions knows the importance of getting it right the first time. For this reason, all Gearstar transmissions are custom built, by...