Manufacturer | General Motors |
---|---|
Production | 1991– |
Predecessor | Turbo-Hydramatic |
Successor | 6L80/6L90 |
Class | 4-speed longitudinal automatic transmission |
The 4L80-E (and similar 4L85-E) is a series of automatic transmissions from General Motors. Designed for longitudinal engine configurations, the series includes 4 forward gears. It is an evolution of the Turbo-Hydramatic 400, first produced in October, 1963. 4L80-Es have been optioned only in Chevrolet/GMC pickups, vans, and commercial vehicles, and the Hummer H1.
The 4L80 and 4L85 are built at Willow Run Transmission in Ypsilanti, Michigan.
Gear ratios:
1 | 2 | 3 | 4 | R |
---|---|---|---|---|
2.48 | 1.48 | 1.00 | 0.75 | 2.07 |
The "MT1" 4L80-E is able to handle vehicles up to 8000 lb (3629 kg) GVWR with up to 440 ft·lbf (597 N·m) of torque. Final drive ratios include 3.42, 3.73, and 4.10.
Applications:
The "MN8" 4L85-E is able to handle vehicles from 7200 to 16,500 lb (3265 - 7483 kg) GVWR with up to 460 ft·lbf (624 N·m) of torque. Final drive ratios include 3.42, 3.73, and 4.10.
Applications: