The 6L80 (and similar 6L90) is a six-speed automatic transmission built by General Motors at its Willow Run Transmission plant in Ypsilanti, MI. It was introduced in late 2005, and is very similar in design to the smaller 6L45/6L50, produced at GM Powertrain in Strasbourg, France. It features clutch to clutch shifting, eliminating the one-way clutches used on older transmission designs. In February 2006 GM announced that it would invest $500 million to expand the Toledo Transmission plant in Toledo, Ohio to produce the 6L80 in 2008. Torque rating 440 ft/lb (600 nm). 6L90 1220ft/lb (2000 nm).

6L80 · 6L90
A Hydra-Matic 6L80 transmission at the Ypsilanti Automotive Heritage Museum
Overview
Manufacturer	General Motors
Production	2005–present
Body and chassis
Class	6-Speed Longitudinal Automatic Transmission
Related	ZF 6HP Aisin AWTF-80 SC Ford 6R transmission GM 6L50
Chronology
Predecessor	4L60-E · 4L65-E 4L80-E · 4L85-E
Successor	8L90 Transmission

Specifications

Technical data

Applications[1]

• 2006-2009 Cadillac XLR-V
• 2006-2013 Chevrolet Corvette
• 2006 Holden VE Commodore/2008-2009 Pontiac G8
• 2006-2013 Holden/Chevrolet WM Statesman/Caprice
• 2014-2017 Holden/Chevrolet WN Statesman/Caprice
• 2007-2014 Chevrolet Silverado 2500HD/3500 HD 6.0 (6L90)
• 2007-2014 GMC Sierra 2500HD/3500HD 6.0 (6L90)
• 2007-2013 GMC Sierra Denali
• 2009-2013 Chevrolet Silverado 1500 5.3 (ext. & crew cab), 6.2
• 2009-2013 GMC Sierra 1500 5.3 (ext. & crew cab), 6.2
• 2010-2013 Chevrolet Silverado 1500 5.3 (reg. cab)
• 2010-2013 GMC Sierra 1500 5.3 (reg. cab)
• 2006-2009 Cadillac STS-V
• 2007-2015 Cadillac Escalade
• 2007-2015 Cadillac Escalade ESV
• 2007-2013 Cadillac Escalade EXT
• 2010-present Chevrolet Express 2500-3500 (6L90-E)
• 2010-present GMC Savana 2500-3500 (6L90-E)
• 2007-2015 GMC Yukon Denali
• 2009-2020 Chevrolet Tahoe
• 2009-2020 GMC Yukon
• 2009-2020 Chevrolet Suburban 1500
• 2008-2013 Chevrolet Suburban 2500 (6L90)
• 2009-2020 GMC Yukon XL
• 2008-2009 Hummer H2
• 2009-2013 Cadillac CTS-V (6L90)
• 2014-2019 (K2XX) Chevrolet Silverado/GMC Sierra 1500
• 2010-2015 Chevrolet Camaro
• 2011-2017 Chevrolet Caprice PPV
• 2012-2015 Chevrolet Camaro ZL1 (6L90)
• 2011(September)-2013 Holden VE Commodore Series 2(MY 2012)
• 2014-2017 Holden VF Commodore / Chevrolet SS
• 2009-2013 Chevrolet Avalanche
• 2015-2019 Chevrolet Silverado 2500HD/3500 HD 6.0 (6L90)
• 2015-2019 GMC Sierra 2500HD/3500HD 6.0 (6L90)
• 2019-2021 (T1XX) Chevrolet Silverado/GMC Sierra 1500
• 2020-present Chevrolet Silverado 2500HD/3500 HD 6.6 L8T (6L90)
• 2020-present GMC Sierra 2500HD/3500HD 6.6 L8T (6L90)

See also

• List of GM transmissions
• Cadillac PDF info on 6L80-E Transmission: http://www.cadillacfaq.com/stsfaq/tsb/data/tsb/05-07-30-023.pdf
• "GM Ypsilanti Begins 6-Speed Production". Automotive Design and Production. Archived from the original on March 3, 2006. Retrieved January 3, 2006.

References