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GM 6L80 transmission

From Wikipedia, the free encyclopedia

6L80 · 6L90
Ypsilanti Automotive Heritage Museum May 2015 069 (Hydra-Matic 6L80 transmission).jpg
A Hydra-Matic 6L80 transmission at the Ypsilanti Automotive Heritage Museum
Overview
ManufacturerGeneral Motors
Production2005–present
Body and chassis
Class6-Speed Longitudinal
Automatic Transmission
RelatedZF 6HP
Aisin AWTF-80 SC
Ford 6R transmission
GM 6L50
Chronology
Predecessor4L60-E · 4L65-E
4L80-E · 4L85-E
Successor8L90 Transmission

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.

Specifications

Technical Data

Gear Teeth

and Ratios

Planetary Gearset: Teeth

Lepelletier Gear Mechanism

Count Total Avg.
Ravigneaux Simple
Type Sun 1.1

Ring 1.1

Sun 1.2

Ring 1.2

Sun 2

Ring 2

Brakes

Clutches

Ratio

Span

Gear

Step

Gear 1 2 3 4 5 6 R
6L80 35

46

46

92

50

94

2

3

6.0401 1.4329
Ratio 4.0267 2.3635 1.5319 1.1522 0.8521 0.6667 - 3.0638
6L50 37

47

47

97

49

89

2

3

6.0346 1.4326
Ratio 4.0650 2.3712 1.5506 1.1567 0.8532 0.6736 - 3.2001
ZF

6HP ALL

31

38

38

85

37

71

2

3

6.0354 1.4327
Ratio 4.1708 2.3397 1.5211 1.1428 0.8672 0.6911 - 3.4025

Applications[1]

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

This page was last edited on 29 August 2020, at 04:59
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