ZF 8HP transmission explained

ZF 8HP
Production:	2008–present
Manufacturer:	ZF Friedrichshafen
Class:	8-speed automatic transmission
Predecessor:	ZF 6HP transmission
Related:	GM 8L transmission

The ZF 8HP transmission is ZF Friedrichshafen AG's trademark name for its 8-speed automatic transmission models for longitudinal engine applications. The name is short for 8-speed transmission with hydraulic converter and planetary gearsets. Designed and first built by ZF's subsidiary in Saarbrücken, Germany, it debuted in 2008 on the BMW 7 Series (F01) 760Li sedan fitted with the V12 engine. BMW remains a major customer for the transmission.

Another major customer is Stellantis, who both received a license to produce the transmission and set up a joint-venture plant with ZF. Stellantis has built the transmission at its Kokomo Transmission plant since 2013 under their own brand name, the Torqueflite 8.^{[1] [2]} The joint venture plant in Gray Court, South Carolina opened in 2012.^[3]

Specifications

Layout

One of the main aims of the ZF 8HP transmission is to improve vehicle fuel economy with extra speeds. Compared to the six-speed ZF 6HP transmission it uses 12 % less fuel, and 14 % less than a 5-speed transmission.^{[4] [5]} Due to changes in internal design, the shift times have reduced to 200 milliseconds; additionally, the unit brings the ability to shift in a non-sequential manner – going from gear 8 to gear 2 in extreme situations.^[6] In the 8HP 70 version, it has a torque handling limit of 700Nm, and weighs 87kg (192lb).^[7]

First generation 8HP products were released starting in 2010. In addition to the rear-wheel drive variant, two different four-wheel drive versions were available, with a version destined for Volkswagen Group applications using a Torsen centre differential.^[8] It is able to encompass a torque range from 300Nm to 1000Nm, and is available for use in middle-class cars through to large luxury sport utility vehicles.

Second generation 8HP products were released starting in 2014. Efficiency improvements over the original design and the first generation include a wider ratio spread of 7.81, reduced drag torque from the shift elements, reduction in required oil pump pressure, and broadened use of the coasting and start-stop systems.^[9] ZF estimated fuel economy improvement over first generation 8HP kits to be 3 %. Refinements were also made with respect to vibration.

Third generation 8HP products were released starting in 2018. Major improvements are total spread of 8.59 and a fuel economy improvement of 2.5 % compared to the second generation. There are several options in maximum torque available, also the gearbox is available with mild hybrid and plug in hybrid options: With 15kW and 200Nm supporting boosting and recuperation in combination with 48 Volt technology up to 90kW and 250Nm for usage with higher voltage.^[10]

Gear Ratios!!R!1!2!3!4!5!6!7!8!Total
Span!Avg.
Step!Compo-
nents

8HP 70 · 2008												4 Gearsets 2 Brakes 3 Clutches
2010: 1^st Generation
8HP 30/I · 8HP 45
8HP 55 · 8HP 70 8HP 65 · 8HP 90
2014: 2^nd Generation
8HP 75/I
8HP 30/II · 8HP 50
8HP 75/II · 8HP 95
2018: 3^rd Generation
8HP 76/I
8HP 30/III · 8HP 51
8HP 76/II · 8HP 80
2016: Racing Cars
8P 45R	TBD	TBD	TBD	TBD	TBD	TBD	1.000	TBD	TBD
2017: Commercial Vehicles
8AP 600 T · 8AP 1000 T 8AP 800 T · 8AP 1200 T
8AP 1200 S

With Assessment! colspan="4"

Planetary Gearset: Teeth	Count	Total	Avg.
Model Type	Max. Input Torque First Delivery		S1 R1	S2 R2	S3 R3	S4 R4	Brakes Clutches	Ratio Span	Gear Step
Gear Ratio	R {i _{R}}	1 {i _{1}}	2 {i _{2}}	3 {i _{3}}	4 {i _{4}}	5 {i _{5}}	6 {i _{6}}	7 {i _{7}}	8 {i _{8}}
Step	- \tfrac{i _{R}} {i _{1}}	\tfrac{i _{1}} {i _{1}}	\tfrac{i _{1}} {i _{2}}	\tfrac{i _{2}} {i _{3}}	\tfrac{i _{3}} {i _{4}}	\tfrac{i _{4}} {i _{5}}	\tfrac{i _{5}} {i _{6}}	\tfrac{i _{6}} {i _{7}}	\tfrac{i _{7}} {i _{8}}
Step 2			\tfrac{i _{1}} {i _{2}} : \tfrac{i _{2}} {i _{3}}	\tfrac{i _{2}} {i _{3}} : \tfrac{i _{3}} {i _{4}}	\tfrac{i _{3}} {i _{4}} : \tfrac{i _{4}} {i _{5}}	\tfrac{i _{4}} {i _{5}} : \tfrac{i _{5}} {i _{6}}	\tfrac{i _{5}} {i _{6}} : \tfrac{i _{6}} {i _{7}}	\tfrac{i _{6}} {i _{7}} : \tfrac{i _{7}} {i _{8}}
Shaft Speed	\tfrac{i _{1}} {i _{R}}	\tfrac{i _{1}} {i _{1}}	\tfrac{i _{1}} {i _{2}}	\tfrac{i _{1}} {i _{3}}	\tfrac{i _{1}} {i _{4}}	\tfrac{i _{1}} {i _{5}}	\tfrac{i _{1}} {i _{6}}	\tfrac{i _{1}} {i _{7}}	\tfrac{i _{1}} {i _{8}}
Δ Shaft Speed	0 - \tfrac{i _{1}} {i _{R}}	\tfrac{i _{1}} {i _{1}} - 0	\tfrac{i _{1}} {i _{2}} - \tfrac{i _{1}} {i _{1}}	\tfrac{i _{1}} {i _{3}} - \tfrac{i _{1}} {i _{2}}	\tfrac{i _{1}} {i _{4}} - \tfrac{i _{1}} {i _{3}}	\tfrac{i _{1}} {i _{5}} - \tfrac{i _{1}} {i _{4}}	\tfrac{i _{1}} {i _{6}} - \tfrac{i _{1}} {i _{5}}	\tfrac{i _{1}} {i _{7}} - \tfrac{i _{1}} {i _{6}}	\tfrac{i _{1}} {i _{8}} - \tfrac{i _{1}} {i _{7}}
8HP 70	700Nm 2008		48^[11] 96	48 96	69^[12] 111	23 85	2 3
Gear Ratio		\tfrac{ 108 }{ 23 }		\tfrac{ 162 }{ 77 }			\tfrac{ 1 }{ 1 }		\tfrac{ 2 }{ 3 }
Step		1.0000		1.4879			1.2845		1.2587
Step 2				1.1787			1.0779
Speed	–1.4243	1.0000	1.5000	2.2319		3.6555	4.6957		7.0435
Δ Speed	1.4243	1.0000	0.5000	0.7319		0.8382	1.0401		1.4478
2010: 1^st Generation
8HP 30/I 8HP 45	300Nm 450Nm		48 96	48 96	60 96	28 104	2 3
Gear Ratio		\tfrac{ 33 }{ 7 }		\tfrac{ 99 }{ 47 }			\tfrac{ 1 }{ 1 }		\tfrac{ 2 }{ 3 }
Step		1.0000		1.4921			1.2854		1.2581
Step 2				1.1805			1.0781
Speed	–1.4306	1.0000	1.5000	2.2381		3.6576	4.7143		7.0714
Δ Speed	1.4306	1.0000	0.5000	0.7381		0.8390	1.0467		1.45058
8HP 55 8HP 65 8HP 70 8HP 90	650Nm 650Nm 700Nm 900Nm		48 ^[13] 96	48 96	69 111	28 104	2 3
Gear Ratio		\tfrac{ 33 }{ 7 }		\tfrac{ 99 }{ 47 }			\tfrac{ 1 }{ 1 }		\tfrac{ 2 }{ 3 }
Step		1.0000		1.4921			1.2847		1.2587
Step 2				1.1806			1.0781
Speed	–1.4213	1.0000	1.5000	2.2381		3.6696	4.7143		7.0714
Δ Speed	1.4213	1.0000	0.5000	0.7381		0.8410	1.0447		1.4536
2014: 2^nd Generation
8HP 75/I^[14]	740Nm		48 96	48 96	69 111	28 104	2 3
Ratio
8HP 30/II 8HP 50	300Nm 500Nm		48 96	54 96	60 96	24 96	2 3
Gear Ratio		\tfrac{ 5 }{ 1 }		\tfrac{ 15 }{ 7 }		\tfrac{ 1 , 507 }{ 1 , 147 }	\tfrac{ 1 }{ 1 }		\tfrac{ 16 }{ 25 }
Step		1.0000		1.4933			1.3139		1.2846
Step 2				1.1986			1.0802
Speed	–1.4468	1.0000	1.5625	2.3333		3.8056	5.0000		7.8125
Δ Speed	1.4468	1.0000	0.5625	0.7708		0.8986	1.1944		1.7308
8HP 75/II 8HP 95	740Nm 900Nm		48 96	54 96	69 111	24 96	2 3
Gear Ratio		\tfrac{ 5 }{ 1 }		\tfrac{ 15 }{ 7 }		\tfrac{ 2 , 315 }{ 1 , 763 }	\tfrac{ 1 }{ 1 }		\tfrac{ 16 }{ 25 }
Step		1.0000		1.4933			1.3131		1.2853
Step 2				1.1986			1.0802
Speed	–1.4375	1.0000	1.5625	2.3333		3.8078	5.0000		7.8125
Δ Speed	1.4375	1.0000	0.5625	0.7708		0.9008	1.1922		1.7344
2018: 3^rd Generation
8HP 76/I	760Nm		48 96	54 96	69 111	24 96	2 3
Ratio
8HP 30/III 8HP 51	300Nm 500Nm		48 96	54 96	60 96	24 102	2 3
Gear Ratio		\tfrac{ 21 }{ 4 }		\tfrac{ 63 }{ 29 }			\tfrac{ 1 }{ 1 }		\tfrac{ 16 }{ 25 }
Step		1.0000		1.5467			1.3161		1.2846
Step 2				1.2246			1.0820
Speed	–1.4143	1.0000	1.5625	2.4167		3.9892	5.2500		8.2031
Δ Speed	1.4143	1.0000	0.5625	0.8542		0.9369	1.2608		1.8173
8HP 76/II 8HP 80	760Nm 800Nm		48 96	54 96	69 111	24 108	2 3
Gear Ratio		\tfrac{ 11 }{ 2 }		\tfrac{ 11 }{ 5 }			\tfrac{ 1 }{ 1 }		\tfrac{ 16 }{ 25 }
Step		1.0000		1.6000			1.3172		1.2853
Step 2				1.2509			1.0836
Speed	–1.3774	1.0000	1.5625	2.5000		4.1754	5.5000		8.5938
Δ Speed	1.3774	1.0000	0.5625	0.9375		0.9777	1.3246		1.8321
2016: Racing Cars
8P 45R	450Nm up to 1050Nm		TBD	TBD	60 96	TBD	2 3
Ratio	TBD	TBD	TBD	TBD	TBD	TBD	1.0000	TBD	TBD
2017: Commercial Vehicles
8AP 600 T 8AP 800 T 8AP 1000 T 8AP 1200 T	600Nm 800Nm 1000Nm 1200Nm		65 115	65 115	62 122	27 105	2 3
Gear Ratio		\tfrac{ 44 }{ 9 }		\tfrac{ 1 , 584 }{ 779 }			\tfrac{ 1 }{ 1 }		\tfrac{ 23 }{ 36 }
Step		1.0000		1.5361			1.2541		1.3148
Step 2				1.2381			1.0535
Speed	–1.1503	1.0000	1.5652	2.4043		3.8983	4.8889		7.6522
Δ Speed	1.1503	1.0000	0.5652	0.8391		0.9153	0.9906		1.8322
8AP 1200 S	1200Nm		65 115	65 115	65 115	27 105	2 3
Gear Ratio		\tfrac{ 44 }{ 9 }		\tfrac{ 1 , 584 }{ 779 }			\tfrac{ 1 }{ 1 }		\tfrac{ 23 }{ 36 }
Step		1.0000		1.5361			1.2676		1.2999
Step 2				1.2381			1.0527
Speed	–1.3013	1.0000	1.5652	2.4043		3.8568	4.8889		7.6522
Δ Speed	1.3013	1.0000	0.5652	0.8391		0.8738	1.0321		1.7654
Ratio R & even	i _{R} = \tfrac{R _{2} (S _{3} S _{4-} R _{3} R _{4)}} {S _{3} S _{4} (S _{2+} R _{2)}}		i _{2} = \tfrac{R _{2} (S _{4+} R _{4)}} {(S _{2+} R _{2)} S _{4}}		i _{4} = 1+ \tfrac{S _{2} R _{1}} {S _{1} (S _{2+} R _{2)}}		i _{6} = \tfrac{ 1 } { 1 }	i _{8} = \tfrac{R _{2}} {S _{2} + R _{2}}
Ratio odd	i _{1} = \tfrac{S _{4+} R _{4}} {S _{4}}		\tfrac{(S _{1+} R _{1)} (S _{4+} R _{4)}} {S _{4} R _{1+} S _{1} (S _{4+} R _{4)}}		\tfrac{S _{1} R _{2} R _{4} (S _{3+} R _{3)+} S _{2} S _{3} (S _{1+} R _{1)} (S _{4+} R _{4)}} {S _{1} R _{4} (S _{3} (S _{2+} R _{2)+} R _{2} R _{3)+} S _{2} S _{3} S _{4} (S _{1+} R _{1)}}			\tfrac{R _{2} (S _{3+} R _{3)}} {R _{2} (S _{3+} R _{3)+} S _{2} S _{3}}
Algebra And Actuated Shift Elements
Brake A	❶	❶	❶					❶	❶
Brake B	❶	❶	❶	❶	❶	❶
Clutch C		❶		❶		❶	❶	❶
Clutch D	❶				❶	❶	❶	❶	❶
Clutch E			❶	❶	❶		❶		❶

Variants and Applications

Model Generation	Max. torque petrol	Max. torque diesel	Car Model
8HP 30 1^st–3^rd	300Nm	300Nm	BMW 1 Series (F20) 116i	BMW X1 (E84)	CMC Zinger (2023–)
8HP 45 1^st	450Nm	500Nm	BMW 1 Series (F20) BMW X1 (E84) BMW 2 Series (F22) M235i BMW 3 Series (F30) BMW 4 Series (F32) BMW 5 Series (F10/F11)	BMW 6 Series (F06/F12/F13) BMW 7 Series (F01/F02) BMW X3 (F25) BMW X4 (F26) BMW X5 (E70) 35i BMW X5 (F15) BMW X6 (F16)	BMW Z4 (E89) Jaguar XE Jaguar XF (X250) (2013–2015) Jaguar XJ (2013–) Lancia Thema V6 Land Rover Range Rover (L322) (2011–2012)	Land Rover Range Rover (L405) (2012–) Land Rover Range Rover Velar I4 (2017–)
Torqueflite 845RE^[15] 1^st			Chrysler 300 3.6 L Pentastar V6 (2011–)^[16] Chrysler 300 C Dodge Challenger 3.6 L Pentastar V6 (2015–)	Dodge Charger 3.6 L Pentastar V6 (2012–)^[17] Dodge Durango^[18] ^[19] 3.6 L Pentastar V6 (2014–2017)	Jeep Grand Cherokee (WK2) 3.6 L Pentastar V6 (2014–2016)	Ram 1500 3.6 L Pentastar V6^[20] ^[21] ^[22] (2012–2019)
8HP 55 1^st	650Nm	650Nm	Audi A4 North American (US) B8/8.5 Quattro Versions^[23] (2011–)	Audi A5 North American (US) B8/8.5 Quattro Versions (2011–)	Audi A6 (C7) Audi A7 (C7) Audi A6 Hybrid (C7)	Audi S4 (B9) Audi S5 (B9)
8HP 65 1^st			Audi A4 (B9)	Audi A6 Hybrid (C7 PHEV) PR China^[24]	Audi A6 (C8) Audi A7 (C8) Audi Q7 (4M) Audi Q8	Audi A8 (D4) Audi A8 (D5) Audi S6 (C8) Porsche Cayenne (2018-) Volkswagen Touareg (2018-)
8HP 70 1^st	700Nm	700Nm	Alpina B3 (F30/F31) Alpina D3 (F30/F31) Alpina B3 (G20/G21) Alpina D3 (G20/G21) Alpina B4 (F32/F33) Alpina D4 (F32/F33) Alpina XD4 Aston Martin Rapide S 2014–2020^[25] Aston Martin Vanquish 2015–2018 Audi Q5 8AT version Audi Q7 (2011–2015) BMW 3 Series (F30) 330d & 335d BMW 4 Series (F32) 430d & 435d BMW 5 Series (F10/F11) BMW 7 Series (F01/F02) |BMW X5 (E70) 50i Chrysler 300 5.7 L HEMI V8 (2015–) Dodge Challenger 5.7 L HEMI V8 (2015–)|Dodge Charger 5.7 L HEMI V8 (2015–) Dodge Charger 6.4 L HEMI V8 Dodge Durango 5.7 L HEMI V8 Dodge Durango 6.4 L HEMI V8 Haval H9 (2017–) Iveco Daily (2014–)^[26] Jaguar F-Type V6 & V8 Jaguar XE 35t Jaguar XF (X250) (2013–2015) Jaguar XJ (2013–) Jeep Grand Cherokee (WK2) 5.7 L HEMI V8 Engine Code [T] EZH & 6.4 L HEMI V8 Engine Code [J] ESG (2014–) Jeep Grand Cherokee (WK2) 3.0 L EcoDiesel V6 (2014–2016)|Jeep Grand Cherokee WL & L 5.7 L HEMI V8 (2021–) Land Rover Discovery LR4 (2009–2016) Land Rover Range Rover Sport L320 SDV6 only (2012–2013) Land Rover Range Rover (L322) TDV8 only (2011–2012) Land Rover Range Rover (L405) (2012–) Land Rover Range Rover Sport L494 (2012–) Land Rover Range Rover Velar V6 & V8 (2017–) MAN TGE (longitudinal engine only) (2017–) Maserati Ghibli (M157) Maserati Grecale Maserati Levante|Maserati Quattroporte^[27] (2013–) Morgan Plus Six Porsche Panamera Diesel & Hybrid models only (2009–2016) Porsche Cayenne (2011–2018) Ram 1500 5.7 L HEMI V8 (2012–2019) Ram 1500 3.0 L EcoDiesel V6 (2013–2019) Rolls-Royce Phantom VII Rolls-Royce Phantom VIII Volkswagen Touareg (2011–2018) Volkswagen Amarok (2012–2020) Volkswagen Crafter SY/SZ (longitudinal engine only) (2017–)|-!8HP 90 1^st|900Nm|1000Nm|Audi Q7 V8 TDI only (2011–2015) Audi A8 (D4) Audi RS6 (C7) Bentley Mulsanne (2010) Bentley Continental GT 2^nd gen. (2011–2018)|BMW 760i/Li (F01/F02) Dodge Challenger SRT Hellcat 6.2 L HEMI V8 Supercharged|Dodge Charger SRT Hellcat 6.2 L HEMI V8 Supercharged Porsche Cayenne (2011–2018) Turbo models and V8 Diesel only Rolls-Royce Ghost^[28] |Rolls-Royce Wraith (2013) Volkswagen Touareg V8 TDI only (2011–2018)|-!colspan=7||-!8HP 50 2^nd|rowspan="2" |500Nm|rowspan="2" |500Nm|Alfa Romeo Giulia Alfa Romeo Stelvio BMW 1 Series (F20) LCI BMW X1 (E84) BMW 2 Series (F22) M240i BMW 3 Series (F30) LCI|BMW 4 Series (F32) LCI BMW 5 Series (F10//F11) BMW 5 Series (G30/G31) BMW 7 Series (G11/G12) BMW X3 20D (G01) BMW X3 30i (G01) BMW X3 M40i (G01)|BMW X4 20D (G02) BMW X4 30i (G02) BMW X4 M40i (G02) BMW X7 Jaguar F-Pace (2016–) Jaguar XF (X260) (2016–) Jaguar XJ (–2019)|Land Rover Defender (L663) (2019–) Land Rover Range Rover (L405) (–2022) Land Rover Range Rover (L460) (2022–) Maserati Grecale|-!Torqueflite 850RE^[29] 2^nd|Dodge Charger Pursuit V6 (2021–) Dodge Durango 3.6 L Pentastar V6 (2017–)|Jeep Gladiator (JT) 3.6 L Pentastar V6 (2019–) Jeep Grand Cherokee (WK2) 3.6 L Pentastar V6 (2017–2022) Jeep Grand Cherokee WL & L 2.0 L I4 (2021–)|Jeep Grand Cherokee WL & L 3.6 L Pentastar V6 (2021–) Jeep Wrangler/Unlimited (JL) 2.0 L I4 Hurricane Turbocharged (2017–)|Jeep Wrangler/Unlimited (JL) 3.6 L Pentastar V6 (2017–) Ram 1500 (DT) 3.6 L Pentastar V6 (2019–)|-!8HP 75 2^nd|rowspan=2|700Nm ^[30] |rowspan=2|740Nm |Alfa Romeo Giulia Quadrifoglio Alfa Romeo Stelvio Quadrifoglio Alpina B5 (G30/G31) Alpina D5 (G30/G31) Alpina B6 (F12) Gran Coupé (2014) Alpina XD3 Alpina XB7 Aston Martin DB11 Aston Martin Vantage (2018) V8|BMW 5 Series (G30/G31) BMW M5 (F90) BMW 7 Series (G11/G12)^[31] BMW X3 30D (G01) BMW X5 (F15)^[32] BMW X5 (F85) M BMW X6 (F86) M BMW X7 Jaguar F-Pace (2016–) Jaguar XF (X260) (2016–) Jaguar XJ (–2019) Jeep Gladiator (JT) 3.0 L EcoDiesel V6 (2020–)|Jeep Grand Cherokee (WK2) 3.0 L EcoDiesel V6 (2017–2021) Jeep Wagoneer/Grand Wagoneer (WS) (2021–) Jeep Wrangler 392 (2021–) Jeep Wrangler/Unlimited (JL) 6.4 L HEMI V8 (2021–) Jeep Wrangler/Unlimited (JL) 3.0 L EcoDiesel V6 (2020–)|JMC Vigus Land Rover Defender (L663) (2019–) Land Rover Discovery L462 (2017–) Land Rover Range Rover (L405) (–2022 Land Rover Range Rover (L460) (2022–) Ram 1500 (DT) 5.7 L HEMI V8 (2019–) Ram 1500 (DT) 3.0 L EcoDiesel V6 (2019–)|-!8HP 75-LCV 2^nd|Ram 2500 6.4 L HEMI V8 (2018–)|Ram 3500 6.4 L HEMI V8 (2018–)|||-!8HP 95 2^nd|900Nm|1000Nm|Aston Martin DBS Superleggera Audi S8 Audi RS6^[33] Audi RS7^[34] Audi SQ7 |Audi SQ8 Audi RS Q8 Bentley Bentayga Bentley Flying Spur (2013) 2014–2019 BMW M760i/Li Dodge Durango SRT Hellcat 6.2 L HEMI V8 Supercharged|Jeep Grand Cherokee (WK2) SRT Trackhawk 6.2 L HEMI V8 Supercharged Lamborghini Urus Porsche Cayenne Turbo models only (2018-) Ram 1500 (DT) TRX 6.2 L HEMI V8 Supercharged (2020–)|Rolls-Royce Ghost Black Badge Rolls-Royce Wraith (2013) Black Badge Rolls-Royce Dawn Black Badge Rolls-Royce Cullinan Volkswagen Touareg V8 TDI only (2018-)|-!colspan=7||-!8HP 51 3^rd|500Nm|500Nm|BMW 2 Series (G42) BMW 3 Series (G20) BMW 4 Series (G22)|BMW Z4 (G29) BMW X3 M40i (G01)|BMW X4 M40i (G02) Jaguar XE 20d RWD (2019–)|Morgan Plus Four Toyota GR Supra|-!8HP 76 3^rd|760Nm|760Nm|Alpina B7 (G11/12)^[35] Alpina B8 BMW 3 Series (G20/G21) M340dX & 330d & 330dX|BMW 4 Series (G22/G23) M440dX & 430d & 430dX BMW M3 (G80/G81)|BMW M5 (F90) (2020–) BMW M8 (F91/F92/F93)|BMW 730d (G11/G12) LCI BMW 8 Series (G15) BMW X5 (F95) M BMW X7|-!8HP 80 3^rd|800Nm|800Nm|Alpina XB7||||-!colspan=7||-!8HP TBD various|||AEBI MT750 Great Wall Pao (2019–)|Great Wall Tank 300 (2020–)|Haval H8 (2017–2018) Ineos Grenadier|VinFast LUX A2.0 VinFast LUX SA2.0|} See also List of Chrysler transmissions List of ZF transmissions External links ]

Notes and References

1. Web site: Reviewed: Chrysler Group's 8 speed automatic transmission. Salerno. Duane. salernoduanesummit.com. 25 April 2019 . 10 May 2019.
2. Web site: Ram ZF 8 Speed Automatic Transmission TorqueFlite 8 ZF 8HP70. https://ghostarchive.org/varchive/youtube/20211215/dLsdrHqQl7c . 15 December 2021 . live. 29 September 2014. 10 May 2019. YouTube.
3. Web site: ZF and Chrysler Reach Agreement for new 8-Speed Automatic Transmissions . 10 June 2010.
4. Web site: Fuel saving and minimizing CO2 emissions. ZF Friedrichshafen AG. 18 September 2009. dead. https://web.archive.org/web/20090719174513/http://www.zf.com/corporate/en/products/innovations/8hp_automatic_transmissions/lower_consumption/lower_consumption.html. 19 July 2009.
5. Web site: Mike. Hanon. ZF Develops 8-Sped automatic. 4 May 2007 . Gizmag.
6. Web site: Maximum driving enjoyment with maximum agility. ZF Friedrichshafen AG. 18 September 2009.
7. Web site: 8-Speed Automatic Transmission. ZF Friedrichshafen AG. 19 September 2016.
8. Web site: The freedom to exceed limits . brainfunkers.co . ZF Friedrichshafen AG. . 7 January 2020.
9. Web site: ZF showcasing second-generation 8HP 8-speed transmission at NAIAS; additional 3% boost in fuel savings. Green Car Congress. 13 July 2015.
10. Web site: Transmission technology from ZF. ZF.com. 20 February 2018.
11. Web site: 8HP 70 Repair Manual · Picture 10106 . 110 . 2014 .
12. Web site: Timur Apakidze · Saturation Dive: ZF 8-Speed Automatic. TTAC: The Truth About Cars . 11 March 2014 . 7 July 2019.
13. Web site: 8HP 55A Repair Manual · Picture 10106 . 169 . 2014 .
14. 2^nd Generation and 3^rd Generation Web site: Efficient And Dynamic · ZF Gearbox Brochure . 1 September 2017 . 7 July 2019.
15. Web site: New Eight Speed Transmission Introduced by Chrysler . 2 September 2011.
16. Web site: America's First Luxury Sedan With Eight-speed Automatic Transmission. 5 September 2011.
17. Web site: 2012 Chrysler Fleet Buying Guide. 21 July 2011.
18. Web site: SEC filing reveals new V6 and 8-speed transmission for Ram. 9 March 2012.
19. Web site: 2014 Dodge Durango Bows With Eight-Speed . 28 March 2013.
20. Web site: 2013 Ram 1500 Unveiled With Eight-Speed . 5 April 2012.
21. Web site: ZF to Supply 8-Speed Automatic Transmission to new 2013 Ram 1500 Pick-up Truck. ZF Friedrichshafen AG. 20 April 2012.
22. Web site: 2013 Ram 1500 Crew Cab SLT 4x4 [w/video]]. Autoblog.com. 25 August 2012.
23. Web site: Audi 8-speed to replace 6-speed automatic across most of range. Audi. Motor1.com. en. 4 February 2020.
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