6T75 Valve Body 2008-2012, remanufactured and ready to install. Fits the 6T75. Ships fast from the USA.
If your 2008-2012 Chevrolet Traverse, GMC Acadia, Buick Enclave or Saturn Outlook is shifting harsh, flaring on the 2-3 or 3-2 shift, shuddering under light throttle, or has set a pressure or solenoid code on its 6T75, the valve body is the usual cause. This listing covers the Generation 1 production run of the 6T75 - everything built before the 2013 control-system split that moved later units to Gen 2 hardware - so you are getting a casting matched to the earlier identification family rather than a later revision bolted on and hoped for. It comes remanufactured and bench-ready, with refreshed bores, check balls, seals, separator plates and gaskets rather than a part pulled straight off a failed unit.
The 6T75 is GM's heavy-duty version of the 6T70 family, built for the longer towing and payload ratings in the Traverse, Acadia and Enclave, but it shares the same clutch-to-clutch hydraulic design with no mechanical shift valves. The valve body routes line pressure through precision bores and spool valves to apply the clutch packs and bands, and it carries the pressure-control and shift solenoids the TCM uses to time every shift and the torque converter clutch apply. Within Gen 1 alone, GM ran four identified sub-versions - 2007-2008, 2009, 2010-2011 and 2012-2013 - with different 3-5-R clutch regulator valve ratios and separator plate, exhaust port and channel plate layouts between them, which is why matching your exact build year inside the 2008-2012 window still matters.
GM's own service bulletins on this transmission are specific: TSB 09-07-30-012F covers no reverse/3rd/5th with DTC P0776 and related codes from a broken 3-5-R wave plate, and a separate special coverage adjustment extended warranty on the clutch wave plate fault for 2007-2009 builds specifically because it was common enough to need a 10-year/120,000-mile program. A later bulletin, 18-NA-358, covers the 2-3 upshift and 3-2 downshift shudder complaint across the 6T70/75/80 family. Pull codes and note which gears are affected before ordering - our 6T70 valve body symptoms and testing guide walks through isolating a hydraulic valve-by-valve fault, and the 6T70 common problems and fixes guide covers the wave plate failure and pressure-switch faults that get blamed on the valve body but need a different part.
This listing is built for the 6T75 across the 2008-2012 model years, which spans the 2009, 2010-2011 and part of the 2012-2013 Gen 1 identification windows. Because GM changed the 3-5-R regulator valve ratio and the separator plate, exhaust port and channel plate between these sub-versions, match the casting marks and connector count on your original unit against the photos, or send your year and VIN so we can confirm the exact revision your vehicle needs before it ships. The full 6T70/6T75 parts collection has every other part sold for this transmission family, including the narrower 6T75 valve body 2013 listing for the following model year.
Change the fluid and filter at the same time you swap the valve body so debris from the old unit does not circulate into the new one, and torque the bolts in sequence to GM's spec rather than cranking them down corner to corner, since uneven clamping load can bind a bore that tested fine on the bench. Refill with Dexron VI ATF only - this unit is sensitive to fluid spec, and the wrong fill produces shift complaints that look identical to a bad valve body. After the install, run the TCM's adaptive relearn drive cycle rather than just driving it normally. If your original complaint included a pressure-switch or TEHCM code, pair this with the 6T75 shift kit 2007-2012 rather than bolting new valving behind components that are already drifting.
| Fits | 6T75 2008-2012 |
| Part type | Valve Body |
| Condition | Remanufactured |
| Brand | GM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
This listing is built for the 6T75 across the 2008-2012 model years in the Traverse, Acadia, Enclave and Outlook. That window spans three of GM's four Gen 1 identification sub-versions, so matching your exact build year still matters for correct fitment.
Gen 1. GM split the 6T70/75 control system into Gen 1 and Gen 2 hardware starting with the 2013 model year. Everything in the 2008-2012 window is Gen 1, which uses a different casting and solenoid layout than the later Gen 2 units.
Harsh or flared 2-3 and 3-2 shifts, torque converter clutch shudder under light throttle, no reverse or 3rd or 5th gear with the Check Engine light on, and stored pressure-control, shift-solenoid or ratio codes.
No. A broken wave plate is a separate mechanical clutch failure that can set the same no reverse/3rd/5th codes as a valve body fault, which is why GM issued a specific bulletin and a 10-year/120,000-mile coverage adjustment for 2007-2009 builds. Confirm which one you have before ordering.
Dexron VI ATF only. Change the fluid and filter at the same time as the valve body so old debris does not circulate into the new unit, and use the correct spec since the wrong fluid causes shift complaints that mimic a bad valve body.
Yes. GM changed the 3-5-R regulator valve ratio and the separator plate, exhaust port and channel plate across the Gen 1 sub-versions inside this year range. Match your casting marks and connector count against the listing photos, or send your year and VIN to confirm first.
