4R75W Sprag Clutch 1998, used and ready to install. Fits the 4R75W. Ships fast from the USA.
Please read this first: although this listing is titled as a sprag clutch, what ships is a used reverse clutch drum for the 1998-and-later 4R70W, the unit later updated as the 4R75W, and it comes without the sprag or one-way clutch installed. It is the right buy if your own intermediate one-way clutch is still good but the drum it rides on is cracked, scored or worn at the lugs, for example in an F-150, Expedition, Navigator, Explorer or Crown Victoria you are already rebuilding. If you need the one-way clutch too, see the complete drum-and-diode assembly linked below.
The reverse clutch drum sits at the front of the gear train. Inside it is the reverse clutch pack, which applies in reverse. Around its outside rides the overdrive band, which clamps the drum in fourth gear. On top, on its lugs, it carries the intermediate one-way clutch that holds the reverse sun gear in second. So one drum has a hand in second, fourth and reverse. Ford changed this area in 1998, when, per Suncoast, the roller-type intermediate clutch was replaced by a mechanical diode, which is why the drum is listed as a 1998-up part. The 4R75 name did not exist yet in 1998; catalogs simply file the family together.
Reverse and fourth-gear slips can also come from the low/reverse band, servo leaks or a worn pressure regulator, so pressure-test first. Our 4R70W Explorer shift problems guide walks through the diagnosis, and the Expedition common problems article covers the high-mileage wear points in the same unit. Sonnax links overdrive band and intermediate one-way clutch failures to the overdrive servo pin wearing its case bore; if you replace the drum and leave a worn servo bore, the band and drum surface will burn again.
This is a used, cleaned drum from a 1998-up 4R70W-family unit, without the sprag. It suits 1998 and later units with the mechanical diode. Before installing, compare it to your old drum: lug count and shape, the band surface width, the bushing and the snap ring grooves. If anything looks different, send us your year and VIN. More drums, kits and hard parts are in our 4R70W parts collection.
| Fits | 4R75W 1998 |
| Part type | Sprag Clutch |
| 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.
No. This is a used reverse clutch drum only, sold without the sprag or one-way clutch. Reuse your good one-way clutch or buy the drum with the diode installed.
Ford did not use the 4R75 name in 1998; the 4R70W and later 4R75W share this drum design, so catalogs list the family together.
1998 and later 4R70W-family units such as the F-150, Expedition, Navigator, Explorer and Crown Victoria. Compare lugs, band surface and grooves to your old drum or send us your year and VIN.
Reverse slip or delay, a slipping fourth gear from a damaged band surface, and cracked lugs that can take out the one-way clutch.
Reverse clutch frictions and seals, the overdrive band if burnt, and check the overdrive servo pin bore for wear.
