Description
Product Overview
The Gearstar Chevrolet 4L80/85E 300M billet input shaft is made from super-strong 300M steel. This 4L80E billet input shaft is stronger than the OEM shaft and is a must-have component for high-horsepower, heavy-towing, and off-road applications. It handles 1000+ HP and is much stronger than the stock shaft
Key Features
- Made from 300M Steel
- Fits 4L80E and 4L85E
- Handles 1000+ HP
- Precision Ground
- Rolled Splines
- Easy Install
- Best For
- Big power LS/LT engine builds
- Heavy-duty trucks for towing
- Off-road vehicles with 4L80E
- Drag racing street/strip cars
- Big block and turbo engines
- Contact Gearstar and upgrade to the strongest 4L80E billet input shaft for reliability.
Faq
The input shaft transfers power from the torque converter to the transmission's internal gear system. It is a critical component that helps deliver engine power to the drivetrain.
The factory 4L80E input shaft can twist, crack, or fail under high horsepower and heavy torque loads. These issues are more common in racing, towing, and boosted engine applications.
Professional installation is recommended because replacing the input shaft requires disassembling the transmission and ensuring all components are properly reassembled.
Yes. The transmission must be disassembled to access and replace the input shaft, which makes it a good upgrade during a rebuild or performance build.
Yes. The 300M billet input shaft is significantly stronger than the factory shaft, helping the transmission withstand high horsepower, heavy towing, off-road use, and other demanding conditions.
