6R75 Clutch Drum 2005, used and ready to install. Fits the 6R75. Ships fast from the USA.
The 6R75 is the heavier-torque member of Ford's ZF-based six-speed family, built for the 5.4L three-valve V8 in the Lincoln Navigator and the Ford Expedition before the 6R80 replaced it for 2009. These are big, heavy trucks that tow, and that load lands hard on the clutch that holds 3rd, 5th and reverse. When a Navigator or Expedition starts flaring into 3rd, slipping in 5th with a trailer behind it, or backing out of a driveway late and with a bang, the direct (B) clutch drum is high on the list. This listing is a used OEM 3-5-R drum, interchange 49555B. It is the five-friction drum, 7-5/8 inches tall, with a 30-tooth ring gear, and it carries a 1-year warranty. The 2005 date is where the listing starts the ZF 6HP26 family it belongs to, which lines up with the early Navigator applications.
Six forward speeds come from four clutch packs working in pairs. Using the apply chart Sonnax publishes for this family, the 1-2-3-4 clutch is the constant in the lower four gears, 2-6 joins it for 2nd, and the 3-5-R clutch takes over from 2-6 to make 3rd. The 3-5-R pack also pairs with the overdrive clutch for 5th and holds reverse. This drum is that pack's housing. Its inner bore carries the apply piston, its splines locate the five frictions and their steels, and its bushing and ring lands are where pressurized oil gets from the shaft into the piston cavity. In a 6R75 behind a torquey 5.4L, any leak there shows up first in 5th under towing load, then in reverse, and finally in 3rd.
Because the B clutch is solenoid-controlled, a weak solenoid, a worn regulator valve or a leaking valve body circuit can starve it and copy a mechanical slip. Start with scan data and line pressure, then use the amp-clamp approach from Sonnax's 2-3 shift article to confirm the B solenoid is being commanded when the slip happens. Our Expedition common problems guide covers how this family fails in full-size SUVs. Once the controls check out, air-check the 3-5-R circuit on the bench, then heat and inspect the drum for cracks around the piston bore. That is the same check the ATSG case in Transmission Digest ran on a 5.4L Expedition.
The listing calls this drum a fit for the ZF 6HP26 and the Ford 6R60, 6R75 and 6R80, 2005 and up. On the 6R75 that means the 5.4L Expedition and Navigator applications. This family saw running changes, so treat the transmission name as a starting point, not proof. Compare your old drum's height (7-5/8 inch), ring gear tooth count (30) and friction count (5), and look closely at the shaft and sealing ring grooves. Send your year and VIN or the case ID tag if you want us to check it first. Related hard parts are in our 6R-series parts collection.
| Fits | 6R75 2005 |
| Part type | Clutch Drum |
| Condition | Used |
| 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 went behind the 5.4L V8 in the Ford Expedition and Lincoln Navigator before the 6R80 replaced it for 2009. Check the tag on your transmission case to confirm which unit you have.
This listing names the 6R60, 6R75, 6R80 and ZF 6HP26. Ford made running changes, so match the 7-5/8 inch height, 30-tooth ring gear and 5 frictions to your old drum, or send us your VIN.
5th gear uses the B (3-5-R) clutch with the overdrive clutch. A small leak at the B drum or piston may hold at light load but slip under towing torque. Rule out solenoid and line pressure problems first.
B frictions and steels, piston seals and the sealing rings that feed the drum. An overhaul kit covers them. Check the bushing at the same time.
Yes. Clear the transmission adaptive values and complete a relearn drive so the PCM learns how the new pack fills, before you tow again.
