6T45 Shift Kit 2007-2012, new and ready to install. Fits the 6T45. Ships fast from the USA.
The 6T45 is the heavier-duty member of the 6T40 family, and in the early years it went behind the 2.4L Ecotec in crossovers like the Chevrolet Equinox, GMC Terrain and Chevrolet Captiva. Those vehicles pull more weight than a compact car, so a worn valve body shows up sooner: shifts that slur and flare, a converter clutch that will not hold steady on the highway, and a dash light with pressure control or pressure switch codes. This listing is the new TransGo SK 6T40-A SHIFT KIT, the Gen 1 valve body repair kit TransGo catalogs for 2007-2012 6T30, 6T40 and 6T45 units with pressure switches.
The 6T45 shares its valve body design with the 6T40, so it shares the same wear points. Line pressure, solenoid feed and converter clutch apply all ride on valves sliding in an aluminum casting, and at high mileage those bores open up. TransGo traces the classic complaints to three spots: the actuator feed limit valve that limits pressure to the solenoids, the boost end of the pressure regulator valve, and the TCC regulator valve. In a crossover that works hard, low line pressure means the clutches take longer to lock up on every shift, and that slip is what cooks friction plates. The kit puts back control in each area:
Not every bad shift in these crossovers is bore wear. GM issued PI0724B for a harsh 2-3 shift on 2011 Captiva, Equinox and Terrain with the 2.4L LAF and 6T45, and the correction there is a TCM calibration update, not hardware. Units built on or before January 15, 2011 can also break the 3-5-R waved plate and lose reverse or third. Check for software updates, check the fluid hot, and compare commanded and actual pressures with a scan tool. Our 6T40/6T45 harsh shift causes guide separates calibration complaints from hydraulic ones, and the shift solenoid symptoms guide shows how to rule out a failed solenoid.
Gen 1 6T30, 6T40 and 6T45, 2007-2012, with pressure switches only. The kit does not fit Gen 2 units. Because GM's Gen 2 changeover happened during 2012 with exceptions, inspect the control solenoid body for pressure switches or read the TEHCM generation digit before ordering. Gen 2 6T45 owners should use the 6T45 Gen 2 shift kit. This is the same TransGo part sold as the 6T40 2007-2012 shift kit, so either listing fits either transmission. Send us your year and VIN if you want us to check.
| Fits | 6T45 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.
TransGo makes one Gen 1 kit, the SK 6T40-A, for the 6T30, 6T40 and 6T45 because they share the valve body design. It fits 2007-2012 Gen 1 units with pressure switches.
A 2011 Equinox 2.4L uses the 6T45, and 2011 units are Gen 1, so it should fit. Confirm the pressure switches are present on the solenoid body, or send us your VIN.
Check for the TCM calibration update first. GM bulletin PI0724B covers a harsh 2-3 shift on 2011 Captiva, Equinox and Terrain 2.4L models and corrects it with reprogramming.
The valve body has to come off and go on the bench to service the bores, and the kit is meant to be installed during a rebuild or valve body service. Follow the TransGo instructions.
Yes. Clear the codes and perform the Service Fast Learn with a scan tool, using Dexron VI filled to the hot level, so the TCM adapts clutch fill to the restored pressure.
