Ford 6R transmission

The 6R is a six-speed automatic transmission for longitudinal engine placement in rear-wheel drive vehicles. It is based on the ZF 6HP26 transmission[1] and is built under license by the Ford Motor Company at its Livonia Transmission plant in Livonia, Michigan. The 6R debuted in 2005 in the 2006 model year Ford Explorer and Mercury Mountaineer.

6R
Overview
ManufacturerFord Motor Company
Production2005–present
Model years2005–present
Body and chassis
Class6-speed longitudinal automatic transmission
RelatedZF 6HP Aisin AWTF-80 SC Transmission GM 6L50 Transmission GM 6L80 Transmission
Chronology
PredecessorFord AOD
SuccessorFord 10R80

The 6R80 is featured in 2009 to present Ford F-150 pickups. It features torque converter lockup capabilities in all 6 gears and an integrated "Tow/Haul" mode for enhanced engine braking and towing performance. For the 2011 model year, the transmission was revised to provide smoother shifts, improved fuel economy, and overall better shift performance. Most notable of the improvements was the addition of a 1 way clutch that provided smoother 1-2 up-shifts and 2-1 down-shifts. The transmission has a relatively low 1st gear and two overdrive gears, the highest of which is 0.69:1. This provides exceptional towing performance when needed, while maximizing fuel economy by offering low engine speeds while cruising.

The 6R80 can be found behind the 3.7L V-6 all the way up to the 6.2L V-8. Ford has stated that while the transmission is used in multiple applications, each transmission is optimized and integrated differently depending on the engine it is mated to. The 6R80 features "Filled for Life" low viscosity synthetic transmission fluid (MERCON LV), though a fluid flush is recommended at 50,000 miles if your truck falls under the classification of "Severe Duty" operation. The transmission, as used in the Ford F-150, has a fluid capacity of 13.1 quarts and weighs 215 lbs

Specifications

Preliminary Note

The 6R-transmissions are based on the ZF 6HP gearbox. The gear sets of the 6R140 are deviant.[2]

Technical Data
Gear Teeth

and Ratios

 Planetary Gearset: Teeth

Lepelletier Gear Mechanism

 Count Total Avg.
Ravigneaux Simple
Type Application 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
6R60

6R80

 Passenger Cars

800 Nm · 590 lb·ft

 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
6R140 Super Duty

1400 Nm · 1033 lb·ft

 37

47

 47

97

 49

95

 2

3

 5.8993 1.4261
Ratio 3.9738 2.3181 1.5158 1.1492 0.8585 0.6736 - 3.1283
Final Drive
Car Type Ratio
4.10
3.73
3.55
3.31
3.15
2.73

Applications

6R60 or 6R80
    • 2009-2017 - 6R80
  • Ford Ranger (T6)
    • 2011-present - 6R80 (on 3.2L and 2.2 single turbo diesel engines)
  • Ford Everest
    • 2015-present - 6R80 (on 3.2L and 2.2 single turbo diesel engines)
  • Mazda BT-50
    • 2011-present - 6R80 (on 3.2L and 2.2 single turbo diesel engines)

6R60
  • 2006-2008 Ford Explorer w/ 4.6L V8
  • 2006 - 2008 Mercury Mountaineer w/ 4.6L V8

6R80

References
  1. "2011 Ford Territory's Diesel Heart Revealed". The Motor Report. 2011-03-09. Retrieved 2011-04-06.
  2. Other gearboxes using the Lepelletier gear mechanism see infobox
  3. "Review: Ford SZ Territory (2011–16)". AustralianCar.Reviews. Retrieved 2 August 2016.

See also
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