4L80E / 4L85E
4L80E Upgrades: Top Performance Parts to Boost Your Transmission
Discover essential 4L80E upgrades, including the Gearstar Billet Direct Drum with oversized sprag, 300M input and main shafts, and supporting components....
4L80E Direct Drum in Performance Rebuilds
In the hierarchy of critical components inside a 4L80E, the direct drum rarely gets the attention it deserves. Builders often focus on shafts,...
How to Trick the 4L80E
Many drivers take components that work in unison, which allow them to pull the gear shifter of their vehicle into drive and reverse everyday, for granted....
Maintenance Tips for Your Torque Converter | 4L80E Transmission
SUMMARY: This article provides essential maintenance tips tailored for everyday users and performance enthusiasts with rebuilt, custom, or stock 4L80E...
TH400 vs 4L80E vs 6L80E: Which GM Heavy Duty Automatic Belongs Behind Your Build?
All three of these will hold serious power. The question is not which one is strongest, it is which one matches the car you are actually building. If you...
All You Need To Know About The Components Of 4L80E Level 4 Transmission
Undoubtedly, the GM 4L80E Performance Transmission Level 4 is a name to be reckoned with. With a staggering horsepower capacity 800 and the ability to handle up...
4L80 Torque Converter Basics for Reinforcing Speed and Drivability
There was a time when drivability, low emissions, and high horsepower were topics of discussion and disputes. Nowadays, auto-shift cars feature speed, fuel...