The General Motors 6T75 6-speed automatic transmission was produced from 2006 to 2017 and was installed in front-wheel drive crossovers under the M7V designation and in all-wheel drive crossovers under the M7X designation. This transmission is known under its own designation, the 6F50, in Ford, Mercury, and Lincoln vehicles.
Specifications
| Type | automatic transmission |
| Number of gears | 6 |
| Type of drive | front / all wheel |
| Engine volume, l | up to 3.6 |
| Torque output, Nm | up to 410 |
| Recommended oil | DEXRON VI |
| Oil capacity, liter | 9.0 |
| Partial replacement, liter | 5.0 |
| Maintenance | every 60 000 km |
| Gearbox lifespan, km | ~250 000 km |
| Weight, kg | 104 |
Gear ratios GM 6T75
Using the 2010 GMC Acadia with a 3.6-liter engine as an example:
| Main | 3.16 |
| 1st | 4.484 |
| 2nd | 2.872 |
| 3rd | 1.842 |
| 4th | 1.414 |
| 5th | 1.000 |
| 6th | 0.742 |
| Reverse | 2.882 |
Using
The transmission was installed on:
- Buick Enclave 1 (GMT967) in 2007 – 2017;
- Chevrolet Traverse 1 (GMT561) in 2008 – 2017;
- GMC Acadia 1 (GMT968) in 2006 – 2017;
- Saturn Outlook 1 (GMT966) in 2006 – 2010.
Disadvantages of the GM 6T75 gearbox
- A common problem with automatic transmissions in the early years was a weak spring disc in the 3-5-R drum;
- In 2009, the design was modernized, and since then it no longer breaks so frequently;
- Also, the solenoid block in automatic transmissions before 2012 didn’t have a long service life;
- With frequent trailer towing, the torque converter can fail as early as 80,000 km;
- All other problems are related to clutch wear and transmission overheating.
