6T70 Clutch Module 2007-2012, new and ready to install. Fits the 6T70. Ships fast from the USA.
A 6T70 that slips in one or two gears, flares between shifts, or smells burnt is almost always telling you a clutch pack is worn. This new friction module covers the generation 1 units built from 2007 through 2012, the years behind most GMC Acadia, Saturn Outlook, Buick Enclave, Chevy Traverse, Malibu and V6 Equinox rebuilds. It is packaged by Exedy under reference EFK284, as shown in the photo, and it is the friction side of a Gen 1 rebuild.
The 6T70 has no bands and no shift valves. Six forward gears come from five clutches (1-2-3-4, 2-6, 3-5-Reverse, 4-5-6 and Low/Reverse) plus a one-way clutch, and every shift is one clutch releasing while another applies. GM's service description of the third-to-fourth shift shows how tight that handoff is: the 3-5-Reverse clutch lets go while the 4-5-6 clutch takes the load. When a friction has lost its lining thickness, the clutch needs more piston travel and more pressure to hold. The control module learns around it for a while, then the slip outruns what adapts can correct and you feel it as a flare or a soft shift. Replacing the frictions restores the clearance the unit was designed around.
Scan for codes and look at which gears slip. A single bad range points at one pack, while slip in every gear points at line pressure or the pump. Pull the pan: lining material means frictions, while brass and steel fragments point at a broken wave plate or drum damage. Our 6T70 3-4 clutch failure guide walks through which pack is involved for each symptom, and the Acadia common problems guide covers the 2007-2009 wave plate failure in detail.
This module is listed for the 2007-2012 6T70, which is the generation 1 design. Do not cross it into a later unit. Transmission Digest reports that Gen 2 parts started appearing selectively in 2013, every 2014-and-later unit is Gen 2, and the Gen 2 1-2-3-4 frictions were thinned from .061 in. to .058 in. with a taller apply piston to match. Mixing generations leaves the pack with the wrong clearance and it slips. If you have a 2012 or early 2013 unit, or a replacement transmission of unknown origin, compare plate count and thickness to what you pulled out, or send us the year and VIN. The full list of 6T70 and 6T75 parts is on the 6T70/6T75 collection page.
| Fits | 6T70 2007-2012 |
| Part type | Clutch Module |
| Condition | New |
| Brand | OEM |
| Reference | EFK284 |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
No. 2014 and later 6T70 units use generation 2 parts, and the Gen 2 1-2-3-4 frictions are thinner than Gen 1. This module is for the 2007-2012 Gen 1 units.
Only if you also replace the broken 3-5-Reverse wave plate and the seal for that piston. The frictions in that pack are usually damaged by the debris, so they are part of the job, but the wave plate is the root cause.
The piston seals and gaskets from an overhaul kit, the filter and pan gasket, and any drum with notched splines. Reusing old seals behind new frictions is a common reason for a quick comeback.
At least 30 minutes in clean Dexron VI. Dry frictions can glaze on the first few shifts.
Yes. The old adapt values were learned around worn clutches. Clear them and run the shift adapt learn with a scan tool, or the first drives will feel harsh or soft.
