6T75 Shift Kit 2013, new and ready to install. Fits the 6T75. Ships fast from the USA.
The 6T75 is the version GM put behind the 3.6L V6 in its larger crossovers such as the Acadia, Enclave and Traverse, and from 2013 on it moved to the Gen 2 valve body and TEHCM. If your 2013 or newer 6T75 slips into a gear when loaded, hunts the converter clutch on the highway, or keeps breaking clutch parts after a rebuild, the pressure control circuits in the valve body are the usual cause. This is TransGo's Gen 2 valve body repair kit, the SK 6T70-G2, which TransGo builds for the 6T70, 6T75 and 6T80 alike.
Weight is what wears a 6T75 valve body. A loaded three-row crossover asks for more line pressure on every shift, and over the years the pressure regulator, actuator feed limit and TCC regulator bores wear and leak. The TEHCM can trim shift timing with adapts, but it cannot make up for oil leaking out of a worn bore. The kit restores those three circuits with hardened replacement valves, including a pressure regulator valve that has an internal balance passage for steadier regulation and a TCC valve with a scarf-cut seal. It also removes the factory isolator valve and fits a relief bushing, ball and spring. On a heavy unit that relief is important because pressure spikes are what crack wave plates and damage drums.
Scan for codes, check that the fluid is at the right level and in good condition, and rule out misfires and converter damage. A harsh light-throttle 1-2 shift with no codes on a later Acadia, Enclave or Traverse may only need a GM drive learn, not parts. Our Acadia 6T75 shift problems guide covers that and the shudder bulletin, and the harsh shift causes guide explains how to tell adapts, valve body wear and clutch tie-up apart.
This kit fits Gen 2 units only. TransGo states that 2013 can be either generation, so read the RPO label. M7V and M7X are Gen 2 6T75 codes, and MH4 is a Gen 1 code. On the bench, a Gen 2 TEHCM has no pressure switches. If yours has switches, it is Gen 1 and needs the 6T75 shift kit for 2007-2012. Do not mix generations of the TEHCM, valve body or calibration. If you are unsure, send us your year and VIN. The full parts range is in the 6T70/6T75 collection.
Before installing, measure the original PR valve inner land. About .303 in. confirms a Gen 2 body. If it measures .314 in., stop, because it is a Gen 1 body. The AFL repair needs TransGo's AFL-G2-TK reamer and its no-groove guide. A drop-in sleeve will not seal a worn Gen 2 AFL bore. Size the TCC valve ring in the freezer and install it cold. TransGo recommends new bonded separator plates to stop cross-leaks. Finish with fresh Dexron VI and a filter, using the 6T70/6T75 filter and pan gasket kit, then run the fast learn. If the bores are too worn to save, the 6T75 valve body for 2014-2016 is the replacement option.
| Fits | 6T75 2013 |
| 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.
No. TransGo builds the SK 6T70-G2 for Gen 2 6T70, 6T75 and 6T80 units. What matters is that your unit is Gen 2, without pressure switches.
Read the RPO label in the glove box. M7V or M7X means a Gen 2 6T75. MH4 means Gen 1, which needs the Gen 1 kit instead. With the pan off, a Gen 2 TEHCM has no pressure switches.
It removes over-boost, which is a common cause of broken wave plates. The broken plate and any burned clutches still have to be replaced, and the cause of a 3-4 bind, such as a worn hub sleeve groove, must be fixed separately.
TransGo's AFL-G2-TK reamer kit for the actuator feed limit bore, a low-speed drill, WD-40, a freezer for sizing the TCC valve ring, and a scan tool for the fast learn.
If the bores are scored beyond what the kit can seal, or the casting is cracked, replacing the valve body is the better choice. Otherwise this kit restores the circuits that wear for much less money.
