Description
Product Overview
The Gearstar Chevrolet 4L80/85E 300M billet main shaft is made from premium 300M steel for maximum strength and durability. This 4L80E main shaft handles 1000+ HP and is essential for high-horsepower, heavy towing, and racing applications.
Key Features
- 300M Premium Steel is stronger than OEM
- Fits 4L80E & 4L85E transmissions
- Built for extreme power and handles 1000+ HP
- Direct replacement and easy installation
Best For
- High-horsepower LS/LT engine builds
- Heavy-duty towing trucks
- Drag racing and street/strip
- Off-road 4L80E applications
- Transmission rebuilds and upgrades
Contact Gearstar and upgrade to the strongest 4L80/85E main shaft for reliability.
