4L60E Clutch Module 1994, new and ready to install. Fits the 4L60E. Ships fast from the USA.
A 1994 Silverado, Sierra, Tahoe, Suburban, S10, Blazer, Camaro or Corvette that slips on the 2-3 shift, flares into overdrive or has lost third and fourth altogether is very often a 4L60E with burnt clutches. This is a new clutch module for the 1994 4L60E, sold with a 1-year warranty. The product photo shows a boxed clutch pack of friction plates, so it is the friction side of an overhaul: you still need seals, a gasket set and any hard parts your teardown turns up.
The 4L60E gets its four ratios from a set of wet multi-plate clutches plus one-way clutches. Each pack is a stack of lined friction plates interleaved with plain steels, clamped by a hydraulic piston when its circuit is fed. The forward clutch is on in first through third, the 3-4 clutch applies on the 2-3 shift and stays on in fourth, the overrun clutch adds engine braking in the manual ranges, and the low-reverse clutch holds for reverse and manual low. The 3-4 pack is the one that fails most, because it carries input torque in the two highest gears and sits in a tight space that sheds heat poorly. Sonnax notes the stock 700-R4 and 4L60-E 3-4 pack used five or six frictions depending on application, against seven in the later 4L65-E and 4L70-E, which is part of why the early units are less tolerant of load.
1994 is also a year worth knowing for diagnosis: it is one of the early 4L60E years that use a simple on/off torque converter clutch solenoid rather than the later PWM-controlled lockup, which matters if you are chasing a lockup complaint alongside the clutch job. Our PWM vs non-PWM TCC guide explains the difference.
Not every no-3rd/4th is clutches. A stripped sun shell gives the same complaint, and a worn valve body bore can cause lockup slip with code P0741. Look at what is in the pan before ordering.
Scan for codes, check fluid condition, then drop the pan. Friction debris confirms clutch wear; bright steel shavings point at hard parts as well. Once the unit is apart, air check the input drum to prove the 3-4 and forward pistons hold. The bigger point, according to Sonnax, is that most 3-4 slipping starts with low line pressure or a leak somewhere in the long 3rd gear oil circuit rather than with the plates themselves, so new frictions alone will burn again if the leak stays. Our 3-4 clutch pack diagnosis guide covers the checks, and 4L60E common problems sorts out which symptom belongs to which pack.
This module is listed for the 1994 4L60E. GM changed input housings, pistons and plate counts over the life of the transmission, and different 1994 applications did not all use the same 3-4 stack, so do not fit it by year alone. Count the frictions and steels you remove from each pack, measure their thickness, and compare spline styles with the plates in the box. If something does not match, send us your year and VIN, or the RPO code from the glovebox sticker, and we will check before you build. If your unit is a 1993, compare with the 1993 4L60E clutch module, and every part we carry for this transmission is on the 4L60E parts page.
Soak each friction in clean ATF for at least 30 minutes before assembly. Replace the steels if they are blued, warped or glazed; new frictions against heat-damaged steels will not hold. Fit new piston seals while the drums are apart, and size the Teflon sealing rings before installing the input housing; our pump alignment and seal sizer tool kit makes that step and the spring compression easier. Set 3-4 clearance with a feeler gauge or dial indicator rather than going by feel. If you want more 3-4 capacity than stock, the Raybestos high energy 3-4 clutch pack is the upgrade path. Refill with Dexron VI, which is backward compatible with the earlier Dexron fluids, and check the level hot.
| Fits | 4L60E 1994 |
| Part type | Clutch Module |
| Condition | New |
| Brand | GM |
| Reference | 000751 |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
It is listed for the 1994 4L60E, which was used in the Silverado, Sierra, Tahoe, Yukon, Suburban, S10, Blazer and Sonoma, plus the Camaro and Corvette. Plate counts varied by application, so compare the plates you remove or send us your VIN first.
Piston seals, Teflon sealing rings, the gasket set and filter at minimum, plus steels if they are discolored or warped. Check the sun shell and input sprag while the unit is apart, since both fail on this transmission.
Usually because of low line pressure or a leak in the 3rd gear oil circuit, such as worn valve body bores, a leaking 3rd accumulator checkball or a cracked pump passage. Find the leak or the new pack will fail the same way.
Use Dexron VI ATF. It is GM's current specification and is approved as a replacement for the older Dexron fluids originally used in 1994.
Clear the codes and drive it through all gears gently. If your computer has stored shift adapts, resetting them with a scan tool lets the shifts settle in faster on the fresh clutches.
