A750E Shift Kit, new and ready to install. Fits the A750E. Ships fast from the USA.
A two-wheel-drive Tacoma, Tundra, 4Runner or Sequoia with the A750E that flares between 2nd and 3rd, slips in 4th on a hill, or sets lockup codes the parts store cannot clear is a classic case of valve body bore wear. This is TransGo's A750 valve refill kit (A750-NTA), the parts half of the SK A750 repair. TransGo updated it in 2016 to add AB60 coverage, so one box handles the A750E as well as the 6-speed A760, A761, A960 and AB60 units.
The A750E is the rear-drive version of Toyota and Aisin's 5-speed automatic. It uses solenoids to time every shift and the converter lockup, and the oil feeding those solenoids is limited by a solenoid regulator valve, which TransGo calls the solenoid modulator. After many miles that valve wears its bore. Solenoid feed then runs too high or too low, and you see harsh or soft shifts, gear ratio codes and line pressure that will not hold spec.
Lockup has its own weak spot. The TCC relay valve and the TCC control valve bushing both wear until the computer can no longer manage converter clutch slip or release it on time. This refill kit contains a new solenoid regulator valve assembly, a TCC relay valve with a bushing, and a TCC control valve bushing with its boost valve. Those are the pieces that bring both circuits back under control.
Do not pull the valve body on a guess. First check the Toyota WS fluid level and condition. Then read the codes and the solenoid commands with a scan tool. Because Toyota gives the same solenoid different names in the repair manual, the parts catalog and the scan data, confirm which solenoid a code refers to before you blame it. Lockup complaints also deserve a road test of their own. Our converter clutch shudder guide separates a valve body lockup fault from a worn converter, and Aisin slipping under load covers the 3rd and 4th gear slip test.
The listing covers the A750E, and TransGo builds this kit for 2003-and-later A750E/F, A760E/H, A761E, A960E and AB60E/F. Within that range there are several valve body layouts. The A750 has no lower solenoid body, while the A760, A761 and AB60 have one with a bolt hole, and the A960 has one with a square opening. Each layout has its own instruction pages and checkball positions. Read your transmission tag, or send us your year and VIN if you need help. See every A750 part in the Aisin collection.
| Fits | A750E |
| Part type | Shift Kit |
| Condition | New |
| Brand | TransGo |
| Reference | A761E |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
This refill kit (A750-NTA) has the valves, bushings, spring and plugs but not the drill guide, drill bits and reamer. TransGo says the job requires that tooling. Buy this one if you or your shop already own the A750 tools.
TransGo rates it for the A760, A761, A960 and AB60 6-speed families as well as the 5-speed A750E/F. Each valve body type has its own instruction pages, so identify yours before you start.
If the slip comes from low or unstable pressure caused by valve body wear, yes. TransGo lists throttle slips in 3rd and 4th among the complaints it corrects. If the clutches are already burnt, they need replacing as well.
TransGo lists P0741, P0746, P0776, P0894 and P2757. Rule out wiring and a failed solenoid before you take the valve body apart, because those set the same codes.
Yes. Clear the adaptive shift values with a scan tool and drive the truck through all gears so the computer relearns against the restored pressures. Use Toyota WS fluid only.
