World Library  
Flag as Inappropriate
Email this Article

GM 4L80-E transmission

Article Id: WHEBN0003616804
Reproduction Date:

Title: GM 4L80-E transmission  
Author: World Heritage Encyclopedia
Language: English
Subject: Jaguar XJ (XJ40), Jaguar XJ (X300), GM 6L80 transmission, General Motors transmissions, Isuzu Elf
Publisher: World Heritage Encyclopedia

GM 4L80-E transmission

Manufacturer General Motors
Production 1991–
Body and chassis
Class 4-speed longitudinal automatic transmission
Predecessor Turbo-Hydramatic
Successor 6L80/6L90

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


  • 4L80-E 1
  • 4L85-E 2
  • See also 3
  • References 4


A Hydra-Matic 4L80 transmission at the Ypsilanti Automotive Heritage Museum

The "MT1" 4L80-E is able to handle engines with up to 440 ft·lbf (597 N·m) of torque.[1] Final drive ratios include 3.42, 3.73, and 4.10.

The 4L80E was rated to max GVWR of 18,000 (Axle and vehicle dependent)[2] Applications:


The "MN8" 4L85-E is able to handle vehicles with up to 460 ft·lbf (624 N·m) of torque. Final drive ratios include 3.42, 3.73, and 4.10.

The 4L85E is able to handle vehicles with a GVWR of up to 18,000 lbs (dependent on axle ratio and vehicle)[3]


Note:These transmissions have issues with early style 12 pin harnesses in which transmission fluid leaks around the harness and shorts the pinouts causing transmission to go into "limp mode" This issue can be easily rectified by simply cleaning the plug.

See also


  1. ^
  2. ^ GM Powertrain. "07 Hydramatic 4L series". General Motors. Retrieved 01/05/2014. 
  3. ^ GM powertrain. "07 Hydramatic 4L Series Specs". General Motors. Retrieved 1/5/14. 
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.