6R75 Planetary, remanufactured and ready to install. Fits the 6R75. Ships fast from the USA.
The 6R75 is the rarest member of Ford's 6R six-speed family, and that is exactly why finding a usable gearset for one is hard. It sat behind the 5.4L V8 in the 2007-2008 Ford Expedition and the matching Lincoln Navigator, a heavy three-row SUV that was often bought to tow. If yours has started to howl at highway speed, has lost a gear, or came apart with bronze and steel in the pan, this remanufactured 6R75 planetary is a rebuilt OEM gearset with a 1-year warranty, so the unit can go back together without hunting salvage yards for a core.
Ford built the 6R series under license from ZF's 6HP26. GEARS Magazine notes that Ford first used the ZF unit itself in the 2005 Expedition and Navigator with the 5.4L, then moved to its own Livonia-built versions. Transmission Digest describes the order as 6R60 first, then the 6R75, then the 6R80, each one raised to handle more torque, and calls the 6R75 a short-lived blip. Inside, all of them share a Lepelletier gear train. A simple input planetary at the front reduces engine speed and feeds the A and B clutches. A Ravigneaux set at the rear combines that reduced path with the direct input through the E clutch, while the C and D clutches hold its members, to give six forward gears and Reverse.
The 6R75 is an early design. It has no one-way clutch, so the D clutch stays applied through all of first gear and every 2-1 coastdown is a clutch-to-clutch event. That also means its rear carrier is the early, long-lug type. GEARS Magazine shows that the 2011-later 6R80 carrier has shorter lugs to make room for the one-way clutch, so a late carrier is not a substitute here.
Rule out the software and electrical faults first, because they are common on these trucks and none of them need a gearset. Transmission Digest covers a 2007-2008 Navigator 6R75 complaint of a harsh 2-1 downshift under 10 mph that is fixed by a PCM calibration update and an adaptive relearn drive, and it notes the harshness can survive a full overhaul if the software is not updated. The lead frame and solenoid checks in our Expedition 6R problems guide and the scan-tool steps in the Expedition shift problems guide apply to the 6R75 as well. Navigator owners can use the Navigator problems guide. A gearset problem shows up as mechanical noise tied to road speed and metal in the pan, not as a code.
This listing is for the Ford 6R75, which Ford application data compiled on Wikipedia places in the 2007-2008 Expedition. The Navigator of the same years used it too. The listing gives no year range of its own, so check the transmission code on the vehicle tag and compare the part to the one you remove. Count the input planet pinions: Transmission Digest reports the early input planet had three pinion gears with a retainer to match (Ford 9L1Z-7H360-A), and a later four-pinion planet uses retainer 9L3Z-7H360-B. The planet and retainer must stay a matched pair. If you would rather we check it, send your year and VIN before ordering. The same gearset family for other 6R units is listed as the 6R60 planetary and the 6R80 planetary, and every related part is on our 6R-series collection page.
| Fits | 6R75 |
| Part type | Planetary |
| Condition | Remanufactured |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
The 6R75 was used behind the 5.4L V8 in the 2007-2008 Ford Expedition and Lincoln Navigator. Earlier 2005-2006 trucks used the ZF 6HP26 itself, and 2009-on trucks moved to the 6R80, so confirm your transmission code before ordering.
Not the rear carrier. The 2011-later 6R80 added a one-way clutch and its rear carrier has shorter lugs. A 6R75 needs the early long-lug carrier. Compare the lug height and pinion count with the part you remove.
Usually not. A harsh 2-1 under 10 mph on 2007-2008 Navigators with the 6R75 is a known calibration issue fixed by a PCM update and an adaptive relearn drive. Gearset damage shows up as noise that follows road speed, missing gears and metal in the pan.
Replace the thrust washers, thrust bearings and bushings that ride against the gearset, plus the seals, gaskets and filter. If the clutches are burned, a full rebuild kit is the better buy.
Use the Ford fluid specification listed for your model year in the owner guide or service information and do not add supplements. Flush the cooler before refilling so old metal does not reach the new gearset.
