Automatic Transmission Assembly

Our Low Gear Planetary for 91-96 4L80E Transmissions is a great way to gain more gear reduction for better low-end response/ torque without sacrificing your cruising RPM/Economy. Features a 2.97 1st gear instead of OEM 2.48.

Our Low Gear Planetary for 97+ 4L80E Transmissions is a great way to gain more gear reduction for better low-end response/ torque without sacrificing your cruising RPM/Economy. Features a 2.75 1st gear instead of OEM 2.48.

This 4L80E (93.5-96) is built from TCI Maximizer components to handle between 450-550 HP from V8 engines.

This 4L80E (97-06) Transmission is built with TCI Super StreetFighter Transmission Components to handle 875 HP Chevrolet V8 Engines.

• Extreme performance clutches and nitrided steel plates for enhanced performance
• Extra-wide powerbands, where available, provide greater torque capacity, and more positive shifts & band apply
• Larger diameter servos increase band apply pressure which means more apply force on flex bands
• New sprags/roller clutches (upgraded in particular models – call for applications), enhanced hard parts and improved lubrication system

This 4L80E Transmission is built with TCI Super StreetFighter Transmission Components to handle 875 HP Chevrolet V8 Engines.

This 4R70W Transmission is equipped with TCI StreetFighter components to handle up to 725 HP from Ford 4.6L engines.

This 4R70W Transmission is equipped with TCI Super StreetFighter components to handle up to 1025 HP from Ford 4.6L engines.