6R80 Shift Kit, new and ready to install. Fits the 6R80. Ships fast from the USA.
If you landed here, you probably drive a six-speed Ford F-150, Expedition, Navigator or Mustang and the transmission has started acting up in one of a few familiar ways: a fine vibration around 30 to 45 mph that you first blamed on the tires, upshifts that get long and mushy after a highway run, or a thunk from underneath as you roll up to a stop sign. This listing is a TransGo 6R80 valve body repair kit, the parts transmission shops reach for when that pattern shows up. TransGo makes it in two generations, and the most important thing on this page is making sure you end up with the one your valve body takes.
The 6R80 has no bands. Every gear change is one clutch letting go while another applies, and the computer times that hand-off through variable force solenoids that all draw from the same line pressure. That line pressure is set by a single pressure regulator valve in the main valve body. Over the miles, the valve and the bushing it rides in wear an oval into the aluminum bore, oil bleeds past, and pressure starts to wander. The converter clutch regulator valve sits in the same casting and has the same problem, which is where the light-throttle quiver comes from. TransGo's kit replaces both with hardened steel valves whose longer lands reach unworn parts of the bore, so the circuit seals again without reaming. New solenoid damper inserts and wire retainers are included because the originals flatten and break.
Rule out the lead frame first. This internal wiring and sensor assembly is the most common electrical failure on the 6R80, and Ford ran an extended coverage program on it (19N01) for codes like P0720, P0722, P0731 and P1500. Starts in a high gear, a wrench light, a dead speedometer or a sudden downshift point at wiring, not at worn valves. Our 6R80 common problems guide walks through how the two failures differ. If the truck refuses to reach 6th, see why a 6R80 won't shift into overdrive. Once electrical faults are cleared and the fluid level is right hot, ratio codes with no circuit codes plus slip while the converter clutch is commanded on is the classic sign this kit fixes.
This listing does not name a year range, so match the generation before you order. TransGo's GEN1 kit, SK 6R80-A, covers 2006-14 6R60, 6R75 and 6R80 valve bodies. The GEN2 kit, SK 6R80-G2, covers the 6R80 from 2015 on and the 6R100 from 2017. Ford's parts book switches to GEN2 for vehicles built after December 2014, but some 2014 and early 2015 trucks and some replacement GEN1 valve bodies look like GEN2 because of an extra filter hole. The only sure test is to measure the old pressure regulator valve: .495 in is GEN1 and .514 in is GEN2. If you already know your years, the dated listings make it simple: the 2006-2014 6R80 shift kit or the 2015-2019 6R80 shift kit. Otherwise send us your year and VIN before ordering. Everything else for this transmission is in our 6R80 parts collection.
| Fits | 6R80 |
| 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.
Measure the original pressure regulator valve. A .495 in land is GEN1 (2006-14, TransGo SK 6R80-A) and a .514 in land is GEN2 (2015-on, TransGo SK 6R80-G2). Build date is a guide, but some 2014 and early 2015 valve bodies are the exception, so measuring or sending us your year and VIN is the safe way.
That quiver with the converter clutch applied is one of the main complaints the kit targets through its new converter clutch regulator valve. TransGo notes that if the shudder has gone on for a long time, the torque converter itself may also need replacing.
No. It is a repair kit that restores the pressure the factory calibration expects, so shifts return to firm and consistent rather than slammed. Shifts may feel uneven for a few drive cycles while the computer relearns.
Yes. The valve body is reached by dropping the pan, so a careful home mechanic with a torque wrench can do it in the vehicle. Bench work on the valve body needs a clean area and a way to keep small parts in order.
Use Mercon LV, the fluid Ford specifies for the 6R80, and set the level with the transmission at operating temperature.
Probably not. That pattern points to the lead frame and its speed sensors, which Ford addressed through bulletins and an extended coverage program. Diagnose the electrical side before buying valve body parts.
