6T70 Clutch Drum 2007-2013, new and ready to install. Fits the 6T70. Ships fast from the USA.
A 6T70 in a Traverse, Acadia, Enclave, Equinox or Malibu that suddenly drives in 1st, 2nd, 4th and 6th but has no Reverse is one of the best-known GM transmission failures of the late 2000s. The wave plate in the 3-5-Reverse clutch cracks, and the pieces often wreck the drum it lives in. This is a new 6T70 clutch drum for 2007-2013 units, sold for exactly that repair: a rebuild where the old housing cannot be trusted again.
The 6T70 uses five clutches and no bands. Two of them, the 3-5-Reverse clutch and the 4-5-6 clutch, share this one rotating housing, which GM's parts breakdown lists as the 3-5-Reverse and 4-5-6 Clutch Housing Assembly. The input shaft is built into it, so the drum turns at turbine speed all the time. In 3rd gear GM's service description shows 3-5-Reverse fluid entering this housing to stroke its piston; on the 3-4 upshift that clutch releases and the 4-5-6 clutch in the same drum takes over. Because the drum is involved in 3rd, 4th, 5th, 6th and Reverse, its condition decides most of how this transmission drives.
Scan for codes and note which gears are missing. Loss of 3rd, 5th and Reverse together, with P0776, matches GM Service Bulletin 09-07-30-012F and its broken wave plate cause. A shudder on the 2-3 or 3-4 shift without that code is usually a valve body issue, covered in our 6T70 3-4 clutch failure guide. Vehicle-specific patterns are in 6T70 Acadia common problems and 6T70 Equinox common problems. Once the unit is apart, check the drum splines, the piston bores and the sealing ring lands. Damaged splines are the usual reason the drum gets replaced instead of reused.
This listing covers the 6T70 from 2007 through 2013. That span includes the early units most prone to wave plate breakage and the start of the Gen 2 revision, so not every drum in the range is identical. Lay your old housing next to the photo and compare overall shaft length, the shaft splines and the reluctor wheel. If anything looks different, send us the year and VIN and we will confirm the right part. Shopping for a 2007-2013 6T75 instead? We list a separate 6T75 clutch drum for 2007-2013. The rest of the hard parts are on the 6T70 parts page.
| Fits | 6T70 2007-2013 |
| Part type | Clutch Drum |
| 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.
The 6T70 was used in GM crossovers and sedans such as the Chevrolet Traverse, Equinox, Malibu and Impala, GMC Acadia and Terrain, Buick Enclave and LaCrosse. This listing covers 2007-2013 units; confirm with your year and VIN.
All three gears use the 3-5-Reverse clutch in this drum. GM traced the common failure to a cracked wave plate inside the housing, which usually sets P0776.
If the drum splines and bores are clean, yes. If the broken plate has notched or flattened the splines, a new plate will not seat properly and the drum should be replaced.
On this transmission the input shaft is part of the 3-5-Reverse and 4-5-6 clutch housing, so listings use both names. Compare your old part to the photo before ordering.
No. A valve body fixes shudder and shift-quality problems from valve wear. A missing Reverse, 3rd and 5th with P0776 is a hard-part failure inside this drum.
