Ford–GM 10-speed automatic transmission

The Ford–GM 10-speed automatic transmission is part of a joint-venture between Ford Motor Company and General Motors to design and engineer two transmissions, a longitudinal 10-speed transmission and a transverse 9-speed trans-axle. Each company will manufacture its own unique version of the transmissions in their own factories.[1][2] The 10-speed transmission was designed by Ford, while GM designed the 9-speed transmission which is used in transverse applications.[3][4]

Ford 10R80 · 10R140 · 10R60

GM 10L80/10L90

GM 10L1000 (Allison)
Overview
ManufacturerFord · General Motors
Production2017–present
Body and chassis
Class10-speed longitudinal automatic transmission
Chronology
PredecessorFord 6R60 · 6R80 · 6R140
GM 8L90

Specifications

Abstract

A unique triple-clutch assembly on a dedicated intermediate shaft, placed in the middle of the architecture, replaces two ordinary clutches and is the key for packaging the 10-speed unit into the same space as previous transmissions.[5] The transmission provides small steps between each gear ratio, improving performance and maximizing engine power during acceleration. A wide gear ratio spread and a lower numerical top gear ratio reduces engine speed at vehicle highway speeds, resulting in improved efficiency.

Technical data

Gear Teeth and Ratios Planetary Gearset: Teeth Count Total Avg.
Model
Type
Version
First Delivery
Sun 1

Ring 1
Sun 2

Ring 2
Sun 3

Ring 3
Sun 4

Ring 4
Brakes
Clutches
Ratio
Span
Gear
Step
Gear R 1 2 3 4 5 6 7 8 9 10
Ford 10R80
GM 10L80
GM 10L90
800 N⋅m (590 lb⋅ft)[6] 2017
900 N⋅m (664 lb⋅ft) · 2018
45
95
51
89
73
119
23
85
2
4
7.3864 1.2488
Ratio 4.8661 4.6957 2.9851 2.1462 1.7690 1.5201 1.2751 1.0000 0.8536 0.6892 0.6357
Ford
10R140
1,400 N⋅m (1,033 lb⋅ft)[7] 2020 58
122
50
86
69
111
26
94
2
4
7.2987 1.2471
Ratio 4.6951 4.6154 2.9186 2.1319 1.7733 1.5188 1.2773 1.0000 0.8514 0.6871 0.6324
GM 10L1000
(Allison)
1,400 N⋅m (1,033 lb⋅ft)[8] 2020 53
103
53
91
65
103
26
92
2
4
7.1817 1.2449
Ratio 4.5448 4.5385 2.8681 2.0609 1.7153 1.4817 1.2583 1.0000 0.8506 0.6877 0.6319
Ford 10R60 600 N⋅m (443 lb⋅ft)[9] 2020 45
95
51
89
73
119
28
104
2
4
7.4157 1.2493
Ratio 4.8854 4.7143 2.9969 2.1488 1.7690 1.5209 1.2755 1.0000 0.8535 0.6890 0.6357
Ratio
R & even
Ratio
odd

Applications

10R60

10R80–MHT

10R80

10R140

10L80 MF6

10L90 MGL

10L1000 (Allison) MGM/MGU

Production

The 10R80 was first produced at the Ford Livonia Transmission Plant in Livonia, Michigan, and the Hydra-Matic 10L80 is made at the General Motors Romulus Powertrain Plant, in Romulus, Michigan.[11] GM's Silao, Mexico, transmission plant started 10L80 production in 2018,[12] while Ford's Sharonville Transmission plant started 10R80 production in 2018.[13]

Lawsuits

At least 5 class action lawsuits have been filed regarding vehicles equipped with Ford's 10R80 transmission[14][15][16][17][18]. Several have since been consolidated to a single case being heard in Illinois[17]. The lawsuits allege safety issues due to harsh and erratic shifting, which causes jerking, lunging, clunking and hesitation between gears[15][17]. At least one case also cites sudden loss of power due to transmission issues[15]. It is also alleged that Ford is aware of these issues and has not sufficiently fixed them, and has told consumers the behavior of the transmission is normal.

McCabe v Ford Motor Company cites 38 different NHTSA complains regarding the 10R80 transmission. The complaints encompass the 2019-22 Ford Ranger, 2018-21 Ford Expedition, 2018-2022 Ford Mustang, 2018 - 2021 Ford Lincoln Navigator and 2021 Ford F150[15].

Some of the lawsuits have been dismissed or partially dismissed[19][20]. As of October 2023, at least 1 of these lawsuits is still ongoing.

References

  1. "Ford and GM finally consummate 9- and 10-speed joint development - SAE International". articles.sae.org. Archived from the original on 2018-03-25. Retrieved 2018-03-24.
  2. "Exclusive: An Inside Look At Ford's New 10 Speed Transmission - The Truth About Cars". The Truth About Cars. 2014-12-01. Retrieved 2018-03-24.
  3. Martinez, Michael (20 April 2018). "No thanks, Ford says to 9-speed offered by GM". Automotive News. Retrieved 8 July 2019.
  4. Tracy, David (23 April 2018). "Why Ford Isn't Using GM's Nine-Speed Automatic Transmission". Jalopnik. Retrieved 8 July 2019.
  5. "Holy Shift! A Look inside GM's new 10-Speed Automatic - Advanced design, GM control system support capability, enhanced efficiency". Retrieved 16 July 2019.
  6. "F150Hub: Ford 10R80 Automatic Transmission Specs, Ratios". Retrieved 15 July 2019.
  7. "F450-XL Hub: Ford 10R140 Automatic Transmission Specs 2020, Ratios". Retrieved 5 June 2020.
  8. "GMC Sierra HD Specs 2020, Ratios". Retrieved 7 June 2020.
  9. "Ford Explorer Specs 2020, Ratios" (PDF). Retrieved 18 June 2023.
  10. "GM Global Propulsion Systems – USA Information Guide Model Year 2018" (PDF). General Motors Powertrain. Retrieved 6 February 2019.
  11. Ford 10R80, GM 10L80 10 Speed Transmission - 10R80, 10L80 10 Speed Automatic Transmission Specs
  12. Game of chicken: GM bets on Mexican-made pickup trucks
  13. "New Programs Update May 2017". @FordOnline. Ford. Retrieved 10 March 2019.
  14. https://www.courthousenews.com/wp-content/uploads/2020/01/FordCA.pdf. Smith v. Ford Motor Company. Case 5:20-cv-00211. Document 1. Retrieved 27 October 2023.
  15. https://www.classaction.org/media/mccabe-v-ford-motor-company.pdf. McCabe v. Ford Motor Company. Case 1:23-cv-10829. Document 1. Retrieved 27 October 2023.
  16. https://www.govinfo.gov/content/pkg/USCOURTS-paed-2_20-cv-00247/pdf/USCOURTS-paed-2_20-cv-00247-0.pdf. Orndorff v Ford Motor Company. Case 2:20-cv-00247-KSM. Document 13. Retrieved 27 October 2023.
  17. https://app.ediscoveryassistant.com/case_law/51364-o-connor-v-ford-motor-co. O'Connor v Ford Motor Co. Case 1:19-cv-05045. Document Filed: July 20, 2023. Retrieved 27 October 2023.
  18. https://www.classaction.org/media/o-connor-v-ford-motor-company.pdf. O'Connor v Ford Motor Co. Case 1:19-cv-05045.Document 7. Filed 8 August 2019. Retrieved 27 October 2023.
  19. Foote, Brett (17 November 2020). "FORD F-150 10R80 TRANSMISSION LAWSUIT DISMISSED IN ILLINOIS SUPREME COURT". Ford Authority. Retrieved 27 October 2023.
  20. Foote, Brett (8 November 2021). "FORD F-150 10R80 TRANSMISSION LAWSUIT SURVIVES PARTIAL DISMISSAL". Ford Authority.
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