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.
Transmission Cooler line fittings
Gearstar Performance 1 minute read
For the first tech tip of the year, we are going to cover transmission cooler fittings. On our transmissions we mainly use male -6AN fittings on our...
4L60E Are They All The Same?
Gearstar Performance 3 minute read
There have been several different versions of the 4L60E over the years. They started in the mid 1990’s and continued through the early 2010’s....
Unlock Peak Performance With Transmission Upgrade Parts
Gearstar Performance 6 minute read
When building a high-performance vehicle, every component needs to keep up with your engine’s power, and that starts with your transmission. Stock units...
What is a Transmission? A Guide for Beginners and Gearheads
Gearstar Performance 7 minute read
If there were a crown for “most mysterious car component,” the transmission would probably be a front-runner. For a lot of enthusiasts and weekend...
What Is a Torque Converter? Key Functions, Components, and Performance Benefits
Gearstar Performance 7 minute read
If you’re building a performance car, refreshing a classic, or putting together a restomod, one of the first questions that usually comes up is:...
Automatic Transmission vs Manual: What You Need to Know for Performance Builds
Gearstar Performance 5 minute read
When building a performance car, restoring a classic, or assembling a street/strip machine, one of the first decisions you must make is whether to choose...