E4OD Clutch Module 1998, new and ready to install. Fits the E4OD. Ships fast from the USA.
Owners of 1998 Ford heavy-duty trucks and vans often find their transmission called an E4OD in one catalog and a 4R100 in the next. That is not a typo: 1998 is the year Ford moved from the E4OD to the 4R100, and parts listed under either name for that year come from the same changeover. This page is the E4OD-labeled listing of a new Raybestos Clutch-Pack friction module for 1998. If your truck slips under load, shifts late and soft, or has scorched fluid on the dipstick, worn clutch lining is the usual cause once electrical faults are ruled out.
The E4OD family is a C6-style three-speed gear train with an electronically controlled overdrive section added up front. ATSG counts six multi-disc clutches inside it: coast, overdrive, intermediate, direct, forward and low/reverse, working with an intermediate band and one-way clutches. The friction plates in each pack carry a paper-based lining that grips the steel plates when the piston applies. Heat is what ages that lining. A truck that tows or idles in traffic loaded cooks the fluid, the lining glazes, and the pack needs more pressure to hold than the PCM is commanding.
The forward clutch is applied in every forward gear, and the coast clutch holds the overdrive section for engine braking, so those two packs usually show the most wear on a high-mileage 1998 unit.
ATRA's E4OD/4R100 quick reference notes that the failsafe ranges are 4th gear in Drive and 2nd in manual 2 and 1, so a truck stuck in one gear is usually an electrical fault, not a burnt clutch. Pull codes and test the solenoid body as shown in our shift solenoid guide, then check line pressure. Our valve body symptoms and testing guide shows where a stuck valve or worn bore can bleed off apply pressure. If pressure is correct and the slip stays with one range, that pack needs new frictions.
This module is listed for the 1998 model year. Transmission Digest reports Ford went to a common F81P pump body and cover casting that year for three assembly types, the E4OD and two 4R100 versions, which is why matching by name alone is risky. Before you order, confirm what you have: a 4R100 case has a PTO port and an E4OD case does not, and the coast clutch drum is cast iron on an E4OD but stamped steel on the 4R100. Our 4R100 vs E4OD comparison covers the identification checks in detail. Send us your year and VIN if you want us to confirm it. All versions for both units are on the E4OD collection page.
| Fits | E4OD 1998 |
| Part type | Clutch Module |
| Condition | New |
| Brand | Raybestos |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
1998 is the changeover year. Check the case for a PTO port, which only the 4R100 has, or look at the coast clutch drum: cast iron on the E4OD, stamped steel on the 4R100. You can also send us your year and VIN.
The forward clutch works in every forward gear and the coast clutch handles engine braking in the overdrive section, so those packs usually show the most wear, especially on trucks that tow.
Usually not. The E4OD defaults to 4th in Drive and 2nd in manual ranges when the solenoids lose control, which is an electrical failsafe. Diagnose codes and the solenoid pack first.
Use MERCON V automatic transmission fluid, soak the frictions in it before assembly, and check the level hot with the engine running.
A gasket and seal kit for the pistons you open, a new filter, any worn bushings or steels, and an auxiliary cooler if the truck tows heavy.
