6T75 Overhaul Kit, new and ready to install. Fits the 6T75. Ships fast from the USA.
If your Chevrolet Traverse, GMC Acadia, Buick Enclave or Saturn Outlook with the heavy-duty 6T75 has lost reverse, slips into 3rd and 5th, flares between gears or leaves clutch material in the pan, a seal kit alone will not finish the job. This new 6T75 kit is built for a full teardown: the photo shows friction plates, steel plates, the gasket and seal set and a filter, so the wear parts for every clutch pack come in one order instead of being pieced together after the case is already split.
The 6T75 is the heavy-duty version of GM's 6T70 front-wheel-drive six-speed. ATRA's introduction to the family describes it as a clutch-to-clutch design: there are no shift valves, and the control module steps each gear change by releasing one clutch while applying another. That makes the condition of the piston seals and the clutch plates the whole story. A seal that bleeds apply pressure, or a glazed friction that will not hold, shows up as a soft or late shift that the computer keeps trying to correct until it sets a code. The gaskets and sealing rings in this kit restore the pressure circuits, and the new frictions and steels restore the holding capacity those circuits feed.
Check the fluid level hot and scan for stored codes first. A pressure switch or solenoid fault on the TEHCM can mimic a mechanical failure, and a unit that shifts cleanly with only an electrical code may need controls work rather than a rebuild. If the pan shows clutch debris or the wave plate code is present, the teardown is justified. Our 6T70 and 6T75 common problems guide walks through separating clutch failures from valve body and solenoid faults, and the Acadia problems guide covers the wave plate bulletin in detail.
This listing is for the 6T75 and does not name a year range. That matters, because GM revised this transmission: Transmission Digest reports Gen 2 internal parts from 2013 and in every 2014-later unit, and GM's own wave plate coverage lists different seal kits for 2007-2008 and 2009 repairs. Before ordering, confirm your RPO code on the glovebox or door label sticker and compare it against your unit, or send us the year and VIN and we will check it for you. If you already know your build, our dated kits such as the 6T75 overhaul kit for 2007-2012 may be a closer match. Every 6T70 and 6T75 part we carry is on the 6T70/6T75 collection page.
A pump that has scored or a worn solenoid body will undo a fresh rebuild, so inspect both while you have access.
| Fits | 6T75 |
| Part type | Overhaul Kit |
| 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 listing photo shows friction plates, steel plates, a gasket and seal set and a filter. That covers the wear items for a full rebuild. Hard parts such as drums, the pump and the valve body are not included.
Only if the wave plate and drum are also addressed. P0776 with no reverse, 3rd or 5th usually means a broken 3-5-Reverse wave plate, so inspect that plate and the drum splines during the rebuild and replace anything damaged.
This listing is for the 6T75, the heavy-duty version. The 6T70 shares the basic design, but clutch counts and some parts differ, so check your RPO code or send us your year and VIN before ordering for a 6T70.
DEXRON VI automatic transmission fluid. Check the level hot on the dipstick after the transmission reaches operating temperature.
Yes. New frictions and seals change clutch fill times, so clear the shift adapts and run the GM relearn. GM has documented harsh 1-2 shifts on these units when the adapts are not learned.
