GM-Ford 6-speed automatic transmission


and Ford Motor Company cooperated in 2002 to create a new automatic transaxle, designed for transverse engine applications in cars. The companies jointly committed to investing US$720 million in their manufacturing plants to support the new transmission.
Each company will name and manufacture the transmission separately:
Ford claims the 6F50 is designed to handle 300 hp and 280 ft·lbf, while General Motors rates their 6T70 to and, the 6T75 to and, and the 6T80 to and. GM lists the wet weight of the 6T70/75/80 to be between and .
Ford appears not to have made a public statement regarding the 6F55's maximum capabilities, but uses it in AWD in the Taurus SHO with an engine rated at 272 kW and 475 N·m of torque.
The first application of the technology is in the 2007 Ford Edge and Lincoln MKX crossover SUVs, as well as the Saturn Aura sedan and the Saturn Outlook crossover. It was also used for the Pontiac G6 GTP models and the GMC Acadia models for 2007. Prior to 2009, this transmission had issues caused by a very weak 3,5,R wave plate, which made this transmission prone to failure in GM products. Updated wave plates were released for many clutches in 6T70. The old design wave plates weren’t stress relieved and could break with use. The updated wave plates are available under the following
part numbers:
ClutchPart Number
123424259063
2-624259816
3-5-Rev24254103
Low-Rev24259817

Gear ratios:
123456RFinal drive
4.4842.8721.8421.4141.0000.7422.882.77, 3.16, 3.39

Applications:
GM:
Ford:'''