Ford 6R transmission

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

The 6R 80 was available in 2009–2017 Ford F-150 trucks (and 2018–2020 only paired with the 3.3L V6 engine). It features 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 one-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 6R 80 can be found behind the 3.7L V6 all the way up to the 6.2L V8. 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 6R 80 features "Filled for Life" low viscosity synthetic transmission fluid (MERCON LV), though a fluid flush is recommended at Template:Convert 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 Template:Convert and weighs Template:Convert.

Gear RatiosTemplate:Efn
Template:Diagonal split header	R	1	2	3	4	5	6	Total Span	Span Center	Avg. Step	Compo- nents

Ford 6R 60 · 6R 80 · 2005	Template:Round	Template:Round	Template:Round	Template:Round	Template:Round	Template:Round	Template:Round	Template:Round	Template:Round	Template:Round	3 Gearsets 2 Brakes 3 Clutches
Ford 6R 140 · 2005	Template:Round	Template:Round	Template:Round	Template:Round	Template:Round	Template:Round	Template:Round	Template:Round	Template:Round	Template:Round

ZF 6HP All · 2000Template:Efn	Template:Round	Template:Round	Template:Round	Template:Round	Template:Round	Template:Round	Template:Round	Template:Round	Template:Round	Template:Round

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Specifications

Basic concept

A conventional planetary gearset and a compound Ravigneaux gearset is combined in a Lepelletier gear mechanism,^[2] to reduce both the size and weight. It was first realized with the 6HP from ZF Friedrichshafen. Like all transmissions realized with Lepelletier transmissions, the 6R also dispenses with the use of the direct gear ratio, making it one of the very few automatic transmission concepts without such a ratio.

It also has the capability to achieve torque converter lock-up on all 6 forward gears, and disengage it completely when at a standstill, significantly closing the fuel efficiency gap between automatic and manual transmissions.

Final Drive
Car Type	Ratio
	4.10
	3.73
	3.55
	3.31
	3.15
	2.73

Gear Ratios
With AssessmentTemplate:Efn Template:Efn		Planetary Gearset: TeethTemplate:Efn Lepelletier Gear Mechanism			Count	TotalTemplate:Efn CenterTemplate:Efn	Avg.Template:Efn
With AssessmentTemplate:Efn Template:Efn		Simple	Ravigneaux		Count	TotalTemplate:Efn CenterTemplate:Efn	Avg.Template:Efn

Mfr. Model	Version First Delivery	S₁Template:Efn R₁Template:Efn	S₂Template:Efn R₂Template:Efn	S₃Template:Efn R₃Template:Efn	Brakes Clutches	Ratio Span	Gear StepTemplate:Efn
Gear Ratio	R $i_{R}$	1 $i_{1}$	2 $i_{2}$	3 $i_{3}$	4 $i_{4}$	5 $i_{5}$	6 $i_{6}$
StepTemplate:Efn	$- \frac{i_{R}}{i_{1}}$ Template:Efn	$\frac{i_{1}}{i_{1}}$	$\frac{i_{1}}{i_{2}}$ Template:Efn	$\frac{i_{2}}{i_{3}}$	$\frac{i_{3}}{i_{4}}$	$\frac{i_{4}}{i_{5}}$	$\frac{i_{5}}{i_{6}}$
Δ StepTemplate:Efn Template:Efn			$\frac{i_{1}}{i_{2}} : \frac{i_{2}}{i_{3}}$	$\frac{i_{2}}{i_{3}} : \frac{i_{3}}{i_{4}}$	$\frac{i_{3}}{i_{4}} : \frac{i_{4}}{i_{5}}$	$\frac{i_{4}}{i_{5}} : \frac{i_{5}}{i_{6}}$
Shaft Speed	$\frac{i_{1}}{i_{R}}$	$\frac{i_{1}}{i_{1}}$	$\frac{i_{1}}{i_{2}}$	$\frac{i_{1}}{i_{3}}$	$\frac{i_{1}}{i_{4}}$	$\frac{i_{1}}{i_{5}}$	$\frac{i_{1}}{i_{6}}$
Δ Shaft SpeedTemplate:Efn	$0 - \frac{i_{1}}{i_{R}}$	$\frac{i_{1}}{i_{1}} - 0$	$\frac{i_{1}}{i_{2}} - \frac{i_{1}}{i_{1}}$	$\frac{i_{1}}{i_{3}} - \frac{i_{1}}{i_{2}}$	$\frac{i_{1}}{i_{4}} - \frac{i_{1}}{i_{3}}$	$\frac{i_{1}}{i_{5}} - \frac{i_{1}}{i_{4}}$	$\frac{i_{1}}{i_{6}} - \frac{i_{1}}{i_{5}}$

Ford 6R 60 6R 80	Template:Convert Template:Convert 2005 (both)	37 71	31 38	38 85	2 3	Template:Round Template:Round	Template:Round Template:Efn
Gear Ratio	Template:Round Template:Efn $- \frac{4, 590}{1, 349}$	Template:Round $\frac{9, 180}{2, 201}$	Template:RoundTemplate:Efn $\frac{211, 140}{90, 241}$	Template:Round $\frac{108}{71}$	Template:Round Template:Efn Template:Efn $\frac{9, 180}{8, 033}$	Template:Round $\frac{4, 590}{5, 293}$	Template:Round $\frac{85}{123}$
Step	0.8158Template:Efn	1.0000	1.7826Template:Efn	1.5382	1.3311	1.3178	1.2549
Δ StepTemplate:Efn			1.1589	1.1559	1.0101Template:Efn	1.0502
Speed	-1.2258	1.0000	1.7826	2.7419	3.6497	4.8096	6.0354
Δ Speed	1.2258	1.0000	0.7826	0.9593	0.9078Template:Efn	1.1599	1.2258

Ford 6R 140	Template:Convert 2005	49 95	37 47	47 97	2 3	Template:Round Template:Round	Template:Round Template:Efn
Gear Ratio	Template:RoundTemplate:Efn $- \frac{13, 968}{4, 485}$	Template:Round $\frac{13, 968}{3, 515}$	Template:Round Template:Efn Template:Efn $\frac{8, 148}{3, 515}$	Template:Round $\frac{144}{95}$	Template:RoundTemplate:Efn Template:Efn $\frac{13, 968}{12, 155}$	Template:Round $\frac{13, 968}{16, 271}$	Template:Round $\frac{97}{144}$
Step	0.7872Template:Efn	1.0000	1.7143Template:Efn	1.5293	1.3190	1.3389	1.2744
Δ StepTemplate:Efn			1.1210Template:Efn	1.1594	0.9854Template:Efn	1.0504
Speed	-1.2703	1.0000	1.7143	2.6216	3.4580	4.6290	5.8993
Δ Speed	1.2703	1.0000	0.7143	0.9073	0.8364Template:Efn	1.1710	1.2703

ZF 6HP	AllTemplate:Efn · 2000Template:Efn	37 71	31 38	38 85	2 3	Template:Round Template:Round	Template:Round Template:Efn
Gear Ratio	Template:Round Template:Efn	Template:Round	Template:RoundTemplate:Efn	Template:Round	Template:Round Template:Efn Template:Efn	Template:Round	Template:Round

Ratio R & Even	$- \frac{R_{3} (S_{1} + R_{1})}{R_{1} S_{3}}$	$\frac{R_{3} (S_{1} + R_{1}) (S_{2} + R_{2})}{R_{1} S_{2} (S_{3} + R_{3})}$		$\frac{R_{2} R_{3} (S_{1} + R_{1})}{R_{2} R_{3} (S_{1} + R_{1}) - S_{1} S_{2} S_{3}}$		$\frac{R_{3}}{S_{3} + R_{3}}$
Ratio Odd	$\frac{R_{2} R_{3} (S_{1} + R_{1})}{R_{1} S_{2} S_{3}}$		$\frac{S_{1} + R_{1}}{R_{1}}$		$\frac{R_{3} (S_{1} + R_{1})}{R_{3} (S_{1} + R_{1}) + S_{1} S_{3}}$
Algebra And Actuated Shift Elements
Brake ATemplate:Efn		❶	❶	❶	❶
Brake BTemplate:Efn	❶			❶		❶
Clutch CTemplate:Efn			❶				❶
Clutch DTemplate:Efn	❶	❶
Clutch ETemplate:Efn					❶	❶	❶

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Applications

6R 60

2006–2008 Ford Explorer/Mercury Mountaineer w/ 4.6L V8

6R 80

2007–2008 Ford Expedition

6R 80

2009–2017 Ford F-150 (except 2017 with 3.5L EcoBoost)
2018–2020 Ford F-150 3.3L
2009–2018 Ford Expedition/Lincoln Navigator
2009–2010 Ford Explorer/Mercury Mountaineer w/ 4.6L V8
2011–2016 Ford Territory (SZ TCDi)^[3]
2011–2017 Ford Mustang V6, GT, 2015–2017 EcoBoost
2011–present Ford Ranger (on 3.2L and 2.2L single-turbo diesel engines)
2011–present Mazda BT-50 (on 3.2L and 2.2L single-turbo diesel engines)
2015–present Ford Everest (on 3.2L and 2.2L single-turbo diesel engines)
2015–2019 Ford Transit

References

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External links

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Ford 6R transmission

Contents

Specifications

Basic concept

Applications

6R 60

6R 80

6R 80

See also

References

External links

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Ford 6R transmission

Specifications

Basic concept

Applications

6R 60

6R 80

6R 80

See also

References

External links

Navigation menu

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