4L80E Clutch Module 1989-1995, new and ready to install. Fits the 4L80E. Ships fast from the USA.
An early 4L80E in a first-generation Chevrolet or GMC 2500 or 3500, a Suburban 2500, a G-van or a Hummer H1 that has started to slip under load, shift late with a flare, or leave the dipstick smelling burnt is usually telling you the friction plates are worn out. This is a new friction module of 21 lined plates for a complete reclutch of an early 4L80E. The title says 1989-1995, but GM trucks did not get the 4L80E until the 1991 model year, so in practice this set is for 1991 through the 1995-96 production change. The frictions are made in the USA and the brand can be mixed within one set.
The 4L80E gets its four speeds from two planetary gearsets and five clutch packs. Each pack has lined frictions that lock against steel plates when hydraulic pressure applies its piston, and the combination of packs that are on decides the gear. This module replaces the lined plates in all five:
The intermediate frictions are the detail that ties this set to early units. Their thickness matches the earlier, Turbo 400 style intermediate plate used in 1991-1996 transmissions, so they will not stack up correctly in a later 4L80E built after the intermediate pack was revised.
Burnt frictions are often the result of another fault, not the cause. Rule out low line pressure, a weak pressure control solenoid and a worn pump before you reclutch, or the new plates will go the same way. Our 4L80E common problems guide covers the pressure checks, and the Silverado 2500 shift problems guide helps separate an electrical shift fault from a mechanical slip. If the truck drives in 2 and 1 but not in Drive, suspect the overdrive roller clutch rather than the frictions.
For early 4L80E transmissions, 1991 through the 1995-96 change, in Chevrolet and GMC 2500 and 3500 pickups, Suburban 2500, full-size vans and the Hummer H1. Because GM changed the intermediate pack and other internals during this period, measure an old intermediate friction and count the plates in each pack before you order. If your unit is a 1995 or 1996, or you cannot tell, send us the year and VIN and we will check it. For later units, see the other friction modules on the 4L80E collection page.
| Fits | 4L80E 1989-1995 |
| Part type | Clutch Module |
| Condition | New |
| 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.
GM trucks did not use the 4L80E until the 1991 model year, so a 1989 or 1990 truck will have a Turbo 400 or other unit. This set is for early 4L80E transmissions, 1991 through the 1995-96 change.
21 friction plates: 4 fourth clutch, 4 intermediate, 10 for the forward and direct clutches, and 3 overrun. Steels, seals and gaskets are not included.
The intermediate frictions in this set match the early 1991-1996 thickness. Later 4L80E units use a different intermediate stack, so measure your old plates first.
If the steels are blued, warped or worn smooth, yes. Damaged steels will glaze new frictions quickly.
Dexron VI. GM lists it for the 4L80E and it is backward compatible with the Dexron III these early trucks originally used.
