Buying & Comparison Guides
- 4L60E
- 700R4
- Rebuilds & Upgrades
- Builds, Features & Press
- Transmission Tech Explained
- Buying & Comparison Guides
- Install & Swap Guides
- Maintenance & Fluids
- GM Transmissions
- Torque Converters
- Gearstar News & Events
- Troubleshooting & Symptoms
- Ford Transmissions
- Mopar Transmissions
- 4L80E / 4L85E
- 4R70W / 4R75W
- Ford AOD / AODE
- 4L65E / 4L70E / 4L75E
- TH350
- 200-4R
- 6L80E / 6L90E
- Mopar 727 / NAG1 / 545RFE
- TH400
- Ford E4OD / 4R100
- Ford C4 / C6
Performance Transmissions vs. Regular Transmissions
Gearstar Performance 9 minute read
In the world of automobiles, the transmission plays a pivotal role in determining how power is delivered from the engine to the wheels. For the average...
Guide To Buying a Transmission for Your Vehicle
Gearstar Performance 6 minute read
The first step in purchasing a transmission is to gain a clear understanding of your specific needs and requirements. Begin by considering the type of...
Manual vs Automatic Transmission: A Driver's Perspective
Gearstar Performance 6 minute read
When it comes to choosing a transmission for your vehicle, the debate between manual vs automatic transmission options has been ongoing for years. Both...
Torque vs. Horsepower: Understanding Engine Performance
Gearstar Performance 5 minute read
In the world of automotive engineering, two key metrics are used to describe an engine's performance: torque and horsepower. To the uninitiated, these...
Understanding Your Transmission Components: A Comprehensive Overview
Gearstar Performance 8 minute read
A vehicle's transmission system plays a critical role in delivering power from the engine to the wheels, enabling the vehicle to move and change speeds...
6L80 vs 6L90: Devil's in the Details
Gearstar Performance 6 minute read
The 6L80 and 6L90 are two of the most popular rear-wheel transmissions from General Motors. So many things have been discussed about these remarkable...