6T70 Shift Kit 2007-2012, new and ready to install. Fits the 6T70. Ships fast from the USA.
A 2007-2012 GM 6T70 that hunts the converter clutch at cruise, slams or flares on the 3rd, 5th or reverse apply, or keeps logging pressure switch codes after the solenoids were already blamed usually has a worn valve body, not a bad computer. This is the TransGo SK 6T70 Gen 1 shift kit for those units, the V6 six-speed found in Traverse, Acadia, Enclave and Outlook crossovers, V6 Malibu and Equinox models, and other GM front-drive cars of that era. It repairs the bores that wear first and adds protection the factory hydraulics never had.
On the Gen 1 6T70 the TEHCM (the combined control module and solenoid body) bolts to a valve body that feeds every clutch through a handful of regulator circuits. Three of them do most of the damage when they wear. The actuator feed limit (AFL) valve caps the pressure going to the solenoids; once its bore leaks, solenoid output drifts and shift timing goes with it. The pressure regulator valve sets line pressure, and a tired one lets pressure swing high or low. The isolator valve circuit can cross-leak and over-boost line pressure, which is hard on drums and wave plates. This kit replaces the AFL with a drop-in bushing and new valve, installs a new pressure regulator valve and spring, and swaps the isolator line-up for a ball-and-spring relief bushing that caps over-boost. It also includes five diaphragms and five grommets to rebuild the TEHCM pressure switches.
Pull codes first. TransGo is clear that this kit does not fix solenoid performance or circuit codes, so a solenoid that is electrically open or shorted needs its own fix. Pressure switch codes, TCC slip and pressure complaints that remain after a clean electrical check point at the valve body. Our 6T70 harsh shift causes guide walks through separating adapts, valve body wear and clutch tie-up, and the 6T70 shift solenoid symptoms guide helps you rule a solenoid in or out before you open the pan.
This listing is for the 2007-2012 Gen 1 6T70: the version with pressure switches in the TEHCM. GM moved to Gen 2 controls around the 2013 model year, and the Gen 2 units have no pressure switches, so this kit does not fit them. Changeover-year vehicles need a check of the RPO code or the valve body itself. If yours is a 2013-up Gen 2, look at the 2013 6T70 shift kit listing instead. Valve bodies also vary inside Gen 1, which the kit handles (see install notes). When in doubt, send us your year and VIN before ordering, or browse every part for this family in our 6T70 parts collection.
If the clutches already show heat or the 3-5-R wave plate is cracked, the valve body repair alone will not save the unit. Pair it with a 6T70 master rebuild kit, and use a sealing ring installer kit so the new drum seals go on without twisting.
| Fits | 6T70 2007-2012 |
| Part type | Shift Kit |
| Condition | New |
| Brand | TransGo |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Only if it is still a Gen 1 unit with pressure switches in the TEHCM. Gen 2 controls arrived around 2013 and have no pressure switches, and TransGo states this kit does not fit Gen 2. Check your RPO code or send us your VIN.
No. TransGo specifically says the kit does not fix solenoid performance or circuit codes. It addresses pressure regulator, actuator feed limit and pressure switch problems, so diagnose electrical solenoid faults separately.
Yes, that is part of the kit. It includes five diaphragms and five grommets. Air test each switch at about 30 psi and only rebuild the ones that leak or are visibly blown; a new TEHCM from the dealer also has to be programmed.
The valve body and TEHCM come off with the transmission in the vehicle, so a valve body only repair is possible. If the clutches are already damaged, the unit has to come out for a rebuild.
Refill with Dexron VI to the correct level, clear codes, and relearn the shift adapts with a GM-capable scan tool so the TCM is not compensating for the old pressure faults.
