GM-Ford 6-speed automatic transmission 1

GM-Ford 6-speed automatic transmission

6T70/6F

Manufacturer General Motors/Ford

Production 2006–

Predecessor 4T60-E/4T65-E4T80-EAX4N

Class 6-speed transverse automatic transmission

General Motors and Ford Motor Company cooperated in 2002 to create a new automatic transaxle, designed fortransverse engine applications in cars and light trucks. The companies jointly committed to investing US$720million in their manufacturing plants to support the new transmission.Each company will name and manufacture the transmission separately:• Ford builds the 6F50 and 6F55 at their Van Dyke Transmission Plant in Sterling Heights, Michigan, and in the

future at Sharonville Transmission in Sharonville, Ohio.• GM builds the 6T70 and 6T75 at Warren Transmission in Warren, Michigan with production starting in July,

2006.[1]

Ford claims the 6F50 is designed to handle 300 hp (224 kW) and 280 ft·lbf (380 N·m), while General Motors ratestheir 6T70 to 315 hp (235 kW) and 280 lb·ft (380 N·m) and the 6T75 to 315 hp (235 kW) and 300 lb·ft (407 N·m).Ford appears not to have made a public statement regarding the 6F55's maximum capabilities, but uses it in AWD inthe Taurus SHO with an engine rated at 272 kW (370 PS; 365 hp)and 475 N·m (350 lb·ft) of torque (Final drive2.77:1).The first application of the technology is in the 2007 Ford Edge and Lincoln MKX crossover SUVs, as well as theSaturn Aura sedan and the Saturn Outlook crossover. It was also used for the Pontiac G6 GTP models and the GMCAcadia models for 2007. Prior to 2009, this transmission had issues caused by a very weak 3,5,R wave plate, whichmade this transmission prone to failure in GM products. Updated wave plates were released for many clutches in6T70. The old design wave plates weren’t stress relieved and could break with use. The updated wave plates areavailable under the following part numbers:

Clutch Part Number

1234 24259063

2-6 24259816

3-5-Rev 24254103

Low-Rev 24259817

Gear ratios:

1 2 3 4 5 6 R Final drive

4.484 2.872 1.842 1.414 1.000 0.742 2.88 2.77, 3.16, 3.39

Applications:

GM:

• 2007 Saturn Aura XR (LY7 V6 Option)

GM-Ford 6-speed automatic transmission 2

• 2007 Pontiac G6 GTP• 2007 Saturn Outlook• 2007 GMC Acadia• 2008 Pontiac G6 GXP• 2008 Buick Enclave• 2008 Chevrolet Equinox (Sport Option)• 2008 Chevrolet Malibu (LY7 V6 Option)• 2008 Pontiac Torrent GXP• 2009 Chevrolet Traverse• 2010 Chevrolet Equinox (LF1 V6 Option)• 2010 Cadillac SRX• 2010 Buick LaCrosse (LF1, LLT V6 Option)• 2012 Chevrolet ImpalaFord:

• 2007 Ford Edge• 2007 Lincoln MKX• 2008 Ford Taurus• 2008 Ford Taurus X• 2008 Mercury Sable• 2009 Ford Flex• 2009 Lincoln MKS• 2009 Ford Escape• 2009 Mercury Mariner• 2009 Mazda Tribute• 2010, 2013 Ford Fusion• 2010 Lincoln MKZ• 2010 Mercury Milan

Sources• "New fuel-saving 6-speed transaxle to propel Ford Edge to head of crossover utility class" [2]. Ford Motor

Company press release. Retrieved November 9, 2005.• "New Hydra-Matic 6T70 Six-Speed Automatic Delivers Performance and Fuel Economy" [3]. TheAutoChannel.

Retrieved January 20, 2006.• "Technologically Advanced Transmissions Enter GM Fleet" [4]. AutoTrends. Retrieved June 3, 2008.

References[2] http:/ / media. ford. com/ article_display. cfm?article_id=21986[3] http:/ / www. theautochannel. com/ news/ 2005/ 08/ 25/ 141299. html[4] http:/ / www. autotrends. org/ technology/ transmissions/

Article Sources and Contributors 3

Article Sources and ContributorsGM-Ford 6-speed automatic transmission  Source: http://en.wikipedia.org/w/index.php?oldid=528517558  Contributors: Antifesto, Brossow, CTPAYC, Fletcher, Kurieeto, Lavenderbunny,MattKeegan, McNeight, Meatsgains, Mihela816, Mrand, R'n'B, Rjwilmsi, Sable232, Sfoskett, Smartmlp, Spyder Monkey, Sydtron, TheHeat3, 19 anonymous edits

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