E4OD Clutch Drum 1998, remanufactured and ready to install. Fits the E4OD. Ships fast from the USA.
Searching for an E4OD clutch drum for a 1998 truck usually means the transmission in a heavy-duty F-Series pickup or E-Series van is apart on the bench, or it is slipping in one gear and burning fluid. This is a remanufactured clutch drum listed for the E4OD in 1998 applications. Before you buy, it is worth knowing that 1998 is the changeover year for this family, because that decides which drum actually belongs in your case.
The E4OD launched in 1989 as Ford's electronic heavy-duty four-speed. For 1998 Ford released the 4R100 to replace it, keeping the same basic layout but changing the pump, the coast clutch drum and the converter clutch control. Transmission Digest's Mike Riley summed it up bluntly: with these two units, mixing and matching is not an option. So a "1998 E4OD" search often belongs to someone whose truck actually carries a 4R100, or to someone building an older E4OD with 1998-dated service parts. Both can work, but only if the drum position and design match what came out of your transmission.
The E4OD is a C6-style three-speed with an electronically controlled overdrive section bolted on the front. Shifts are made by clutch packs, and each pack lives in a drum: the drum's splines hold the plates, its bore forms the piston cylinder, and its bushing and sealing ring lands carry apply oil from the support into the piston. A drum that is cracked, worn at the bushing or scored at a ring land lets pressure bleed off, so the piston never clamps the pack fully and the clutches burn.
Sonnax lists burnt intermediate clutches, direct clutch failure and input drum wear at the center support among the recurring E4OD failures, and leaking case feed passages can mimic a bad drum.
Check line pressure and electrical faults first. A sticking modulator or EPC problem produces soft, slipping shifts on good hard parts; see our E4OD EPC solenoid guide and the E4OD common problems article. If pressure is right and one pack is burnt, air-check that circuit with the unit apart. Air escaping at the drum hub or a crack in the drum confirms it.
This drum is listed for the E4OD in 1998 applications; the listing does not name the drum position. Before ordering, tell us which drum you are replacing (coast, forward, direct or another) and send your year and VIN, or compare the drum you removed for lug count, bushing or bearing support and overall height. If your 1998 truck has a 4R100, the coast drum in particular is a 4R100-specific stamped steel part and not interchangeable with the cast iron E4OD drum. The same part is also listed on our 4R100 clutch drum 1998 page, and every front and main-box part for this family is on the E4OD collection page.
| Fits | E4OD 1998 |
| Part type | Clutch Drum |
| 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.
Ford released the 4R100 for 1998 as the E4OD's replacement, so a 1998 truck or van can be either depending on when and how it was built. Send us your VIN and we will confirm the unit before you order.
The listing identifies it as a 1998 E4OD clutch drum without naming the position. Tell us which drum you are replacing and we will confirm it matches before it ships.
No. The E4OD coast drum is cast iron with its bushing at the back, and the E4OD pump's stator support is laid out to match. The stamped 4R100 coast drums need a 4R100 pump.
The friction and steel plates and piston seals for that clutch pack, the sealing rings on the mating support, a filter, and the cooler flush. Reusing old frictions in a replacement drum is a common comeback.
Mercon V ATF. Check the level hot in park after the first test drive.
