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
TH350 vs. TH400 Performance: Which Transmission Offers Better Power and Reliability?
GEARSTAR PERFORMANCE 10 minute read
The TH400 holds more power. The TH350 is lighter and shorter. That is the whole comparison in two sentences, and everything else is about matching one of...
What is the Difference Between a 4L70-E and a 4L75E? Key Variations Explained
GEARSTAR PERFORMANCE 7 minute read
The 4L70-E and 4L75-E transmissions are both upgrades of the 4L60 series, but they differ in strength and design features. The 4L70-E includes an added...
Automatic Transmission vs. Manual Transmission: The Ultimate Showdown
GEARSTAR PERFORMANCE 18 minute read
Ever feel like you're stuck in the never-ending debate of Manual Transmission versus Automatic Transmission? It's like trying to figure out which came...
Your Guide To Choosing Ford C4 Performance Racing Transmission
Imran Khan 6 minute read
When upgrading your vehicle's performance, one critical component to consider is the transmission. Ford's C4 transmission, originally produced from 1964...
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...