The Ford 6R140, or TorqShift 6, 6-speed automatic transmission has been assembled since 2010 and is installed in numerous Super Duty models, including the F250, F350, and F450. This automatic transmission is used with high-performance engines, including the 6.7-liter PowerStroke diesel.
Specifications
| Type | automatic transmission |
| Number of gears | 6 |
| Type of drive | rear / all wheel |
| Engine volume, l | up to 7.3 |
| Torque output, Nm | up to 1270 |
| Recommended oil | Mercon LV |
| Oil capacity, liter | 15.8 |
| Partial replacement, liter | 8.2 |
| Maintenance | every 60 000 km |
| Gearbox lifespan, km | ~300 000 km |
| Weight, kg | 158.7 |
Gear ratios Ford 6R140
Using the 2012 Ford F-350 with the 6.7 PowerStroke diesel as an example:
| Main | 3.55 |
| 1st | 3.974 |
| 2nd | 2.318 |
| 3rd | 1.516 |
| 4th | 1.149 |
| 5th | 0.858 |
| 6th | 0.674 |
| Reverse | 3.128 |
Using
The transmission was installed on:
- Ford Super Duty 3 (P473) in 2010 – 2016;
- Ford Super Duty 4 (P558) in 2016 – …
Disadvantages of the Ford 6R140 gearbox
- This is a robust transmission, but owners often chip the engine and install aftermarket wheels;
- And so, severe wear of the torque converter lockup clutch occurs even before 100,000 km;
- And then all this dirt scatters throughout the automatic transmission’s oil system, clogging the valve body;
- Additionally, aggressive chipping can cause the intermediate shaft and input shaft hub to crack;
- All other problems with this transmission are related, one way or another, to overheating.
