Ford-GM 10-speed automatic transmission

This 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 GM 10L80/10L90 · Allison 10L1000
Overview
ManufacturerFord · General Motors
Production2017–
Body and chassis
Class10-speed longitudinal automatic transmission
Chronology
PredecessorGM 8L90
Ford 6R80 · 6R140

SpecificationsEdit

AbstractEdit

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 trans 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 DataEdit

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 1 2 3 4 5 6

(5)

7

(6)

8

(7)

9 10

(8)

R
Ford 10R80

GM 10LXX

800 Nm · 590 lb·ft[6] · 2017

900 Nm · 664 lb·ft · 2018

45

95

51

89

73

119

23

85

2

4

7.3864 1.2488
Ratio 4.6957 2.9851 2.1462 1.7690 1.5201 1.2700 1.0000 0.8536 0.6892 0.6357 - 4.8661
ZF 8HP

GM 8LXX[a]

For Comparison

Purposes Only

45

95

51

89

73

119

23

85

2

3

7.3864 1.3306
Ratio 4.6957 2.9851 2.1462 1.7690 1.3282 1.0000 0.8211 0.6357 - 3.1941
Ford

10R140

1400 Nm · 1033 lb·ft[7]

2020

58

122

50

86

69

111

26

94

2

4

7.2987 1.2471
Ratio 4.6154 2.9186 2.1319 1.7733 1.5188 1.2773 1.0000 0.8514 0.6871 0.6324 - 4.6951
GM Allison

10L1000

1356 Nm · 1000 lb·ft[8]

2020

53

103

53

91

65

103

26

92

2

4

7.1817 1.2449
Ratio 4.5385 2.8681 2.0609 1.7153 1.4817 1.2583 1.0000 0.8506 0.6877 0.6319 - 4.5448

ApplicationsEdit

FordEdit

10R80Edit

General Motors[9]Edit

10L80 MF6Edit

10L90 MGLEdit

ProductionEdit

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.[10] Ford's Sharonville Transmission plant started 10R80 production in 2018 and is scheduled to start 10R140 production in 2019[11].

NotesEdit

  1. ^ The 8-speed transmission shows the sole influence of the triple-clutch arrangement on the improvement in direct comparison to the two replaced normal clutches: which gears remain, which are new and which differ from the 8-speed design. Therefore, the same 4 planetary gearsets are applied. The manufacturing of an 8-speed transmission with these planetary gearsets is not intended.

ReferencesEdit

  1. ^ "Ford and GM finally consummate 9- and 10-speed joint development - SAE International". articles.sae.org. 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. "No thanks, Ford says to 9-speed offered by GM". Automotive News. Retrieved 8 July 2019.
  4. ^ Tracy, David. "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. ^ "GM Global Propulsion Systems - USA Information Guide Model Year 2018" (PDF). General Motors Powertrain. Retrieved 6 February 2019.
  10. ^ Ford 10R80, GM 10L80 10 Speed Transmission - 10R80, 10L80 10 Speed Automatic Transmission Specs
  11. ^ "New Programs Update May 2017". @FordOnline. Ford. Retrieved 10 March 2019.

External linksEdit