Buying & Comparison Guides
- 4L60E
- 700R4
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- 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
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...
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...
3 Types of Ford AOD Transmission Identification
Gearstar Performance 6 minute read
The oil crisis of 1973 was a jarring reality for many American motorists as fuel became more expensive than it used to be. The only way out of this...
GM Turbo 350 Transmission Options
Gearstar Performance 5 minute read
The GM Turbo 350 transmission is a 3-speed, automatic shift transmission and one of the greatest automatic transmissions ever built. It was introduced in...
An Overview of The GM Turbo 350 Performance Transmission
Gearstar Performance 5 minute read
Many experts consider the Turbo 350 Transmission perfect for light trucks, rally races, and entry-level sports vehicles. What makes this transmission...