TCI 4L80E-Based 4-Speed Transmission Package GM V8 Chevy C/K 91-98
Highlights
- Rated to 875 HP
- SFI-Spec Bellhousing
- Adapter Flexplate Included
- Works With GM or TCI TCU
TCI 4L80E-Based 4-Speed Transmission Package for 1991-1998 Chevy C/K Trucks with GM V8.
TCI's electronic 4-speed is based on the GM 4L80E and rated to handle 875 hp. The package includes an SFI-spec adapter bellhousing for mounting behind a GM V8 and an adapter flexplate that matches the engine crankshaft and GM torque converter bolt patterns. It works with the original GM transmission controller or a TCI EZ-TCU, and the package adds a transmission cooler, dipstick, TV cable, and 12 quarts of Max-Shift transmission fluid for a complete install.
Kit Includes:
- 4L80E-based transmission
- SFI-spec bellhousing
- Flexplate
- Transmission cooler
- Dipstick
- TV cable
- (12) Quarts Max-Shift transmission fluid
Features and Benefits:
- 4L80E-based electronic 4-speed transmission
- Rated to 875 hp
- SFI-spec adapter bellhousing
- Adapter flexplate matches crank and GM converter patterns
- Works with the original GM controller or TCI EZ-TCU
- Complete installation package
Vehicle Fitment:
- 1991-1998 Chevy C/K 1500, 2500, and 3500
- 1991-1998 GMC C/K 1500, 2500, and 3500
Please Note:
This transmission accepts torque converters of 10" or smaller.
California Residents: Proposition 65 Warning
Related Categories: C/K Drivetrain
Note: This item is not CARB (California Air Resource Board) exempt and is not legal for sale or use in the state of California.
Installation Difficulty

Intermediate skill is required for this installation.
Installation Instructions
Vehicle Fitment
This product will fit the following C/K years:
- 1991,
- 1992,
- 1993,
- 1994,
- 1995,
- 1996,
- 1997,
- 1998,












