THM 6L45E, 6L50E, 6L80E, 6T70E, 6T75E (6F50E, 6F55E) Transmission

A few months ago I heard that General Motors and Ford where going to share some drive train components in an effort to reduce cost. The results of that statement are starting to appear in new vehicles.

The 6L45, 6L50, 6L80, 6T70, 6T75 are all six speed automatic transmissions. The "L" following the 6 indicates a rear wheel drive unit and the "T" indicates a front wheel drive unit. The number that follows is in relation to the relative torque capacity of the unit and the E means it is an electronically controlled unit.

The unit that is being shared between the two vehicle manufacture titans at first glance of the information available is the front wheel drive unit. GM's model number is 6T70 and the 6T75 and Ford's designation is 6F50 and 6F55E.

The units are still very new to the market, introduced in 2007, and information is still scarce. From the information available for parts this what we do know:

The overhaul kit, banner kit and master kit are different for the Ford and GM.
The bushing kit is different too.

Frictions, steels, pressure plates, sealing ring kit, thrust washer kit, bearing kit and pump seem to be shared in both units.

Here is a short list of some models using the FWD:

Buick Enclave
Chevrolet Acadia, Equinox, Yukon Denali
Ford Flex, Taurus