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.

5 Tips for Choosing a Transmission Rebuild Kit

5 Tips for Choosing a Transmission Rebuild Kit

Gearstar Performance 6 minute read

One of the most challenging repairs anyone can make on a vehicle is rebuilding a transmission. A transmission is a complicated mess of small parts,...

GM Turbo 350 Transmission Fluid Types to Consider

GM Turbo 350 Transmission Fluid Types to Consider

Gearstar Performance 6 minute read

If you need to service your transmission, you must beware of the type of transmission fluid to use, especially for GM Turbo 350. This can be somewhat...

6 Tips to Boost Auto Transmission Performance

6 Tips to Boost Auto Transmission Performance

Gearstar Performance 6 minute read

A vehicle auto transmission is a complex mechanical system that can be expensive to replace when damaged. This cost is why utmost care is essential to...

Horsepower and Torque: The Difference

Horsepower and Torque: The Difference

Gearstar Performance 6 minute read

A vehicle's two top performance metrics bandied about by car enthusiasts are horsepower and torque. You will find them peppered all over every...

5 Causes of a Transmission Fluid Leak

5 Causes of a Transmission Fluid Leak

Gearstar Performance 6 minute read

Have you ever wondered why a puddle of red fluid always seems to appear under your vehicle magically? There's a big problem if you have noticed similar...

Fixing a Transmission: 6 Benefits of Hiring an Expert

Fixing a Transmission: 6 Benefits of Hiring an Expert

Gearstar Performance 6 minute read

As a vehicle owner, the ability to do small maintenance tasks can save you a few dollars here and there. Installing a new car battery, adding oil, or...