FTI TH400 Transmission - Level 4.5 - 1100HP - Reverse Pattern - Sportsman Transbrake - GM Ultrabell

This is the FTI Performance Level 4.5 TH400 transmission, built for GM applications and rated to handle up to 1100 horsepower. It features a reverse pattern manual valve body and a Sportsman transbrake, making it a solid choice for serious drag racing or performance street use where quick launches are essential. The integrated GM Ultrabell bellhousing means it's ready to bolt up to your compatible GM engine without needing an adapter.

FTI Performance builds these transmissions with robust internals designed for high-stress environments. The Level 4.5 designation indicates a significant upgrade over stock components, including a reinforced drum, upgraded clutch packs, and a high-performance servo. The manual valve body allows for direct gear selection and a positive engagement feel, while the transbrake provides a powerful advantage off the starting line by holding the transmission in gear until you release the button. This setup is ideal for vehicles that see regular track time and demand reliable power transfer under extreme conditions.

When installing this transmission, ensure you have the correct transmission fluid and a compatible torque converter. It's also recommended to check your driveshaft length and U-joint condition, as modifications are common with high-performance drivetrain upgrades. Refer to FTI Performance's installation guidelines for specific details regarding fluid capacity and any necessary adjustments for your application.