This A750 SHIFT KIT® Valve Body Repair Kit fits 2003 and newer Toyota and Lexus vehicles equipped with the A750, A760, A761, A960 and AB60 series automatic transmissions. Common complaints with these transmissions are shuttle shifts, bind-up or flare on the 2-3 shift, slips with throttle in 3rd and/or 4th gear, solenoid and TCC performance codes as well as rough kickdown at highway speeds due to slow TCC release.
The first area of concern leading to the TCC complaints is a worn-out TCC relay valve bore. When the TCC relay valve bore has excessive wear, the computer can no longer control the apply slippage and the release rate of the lock-up as it is supposed to. Additionally, the TCC control valve and bushing is prone to wear causing lock-up control complaints as well.
The other area of concern is a worn-out solenoid modulator valve bore. The purpose of solenoid modulator valve is to limit the pressure going to solenoids, just like an AFL valve or solenoid pressure regulator valve does on other units. The modulating valve and spring are calibrated to prevent solenoid feed pressure from exceeding a predetermined PSI, no matter what main line pressure is. This is necessary to prevent more fluid from being fed to the solenoids than they can effectively regulate and to limit what max line pressure output is. If the pressure feeding the solenoids is too high or too low, output will also be too high or too low. Consequently, shift quality complaints, solenoid performance and gear ratio codes can occur along with low or high main line pressure.
Features & Benefits:
The kit includes an oversized USA-made hardened steel TCC relay valve and bushing that restores the hydraulic circuit integrity. On the other hand, the new redesigned drop-in solenoid modulator valve system does not require any tooling. The furnished bushing and valve will restore the solenoid modulator valve function using the existing worn bore. Similarly, the new drop-in hardened steel TCC control boost valve and bushing does not require any special tooling either.
This kit also includes reusable tools to oversize the TCC relay valve bore. If you already have the tool kit order the TransGo refill kit part # A750NTA.
Corrects/Prevents/Reduces:
Shuttle, bind-up or flare on 2-3 shift
Slips with throttle in 3rd and/or 4th gear
Rough kickdown
Codes P0746, P0751, P0756, P0771, P0776, P0894, P2714 and P2757
Includes:
Special 5/16”drill bit and steel guide
High-quality USA-made steel reamer
High-quality USA-made heat-treated steel guide
0.055” Drill bit
TCC relay valve, bushing and retainer
Solenoid modulator valve, bushing, spring and end plug
(2) TCC boost valve, bushing and retainer (match bushing diameter to your original one)
TransGo Shift Kit vs. Reprogramming Kit
Shift Kit® -- DESIGNED FOR DURABILITY
TransGo Shift Kit® valve body repair kits correct, prevent and reduce multiple transmission problems such as shift irregularities and durability issues. These kits are designed for normal everyday use and light duty towing.
Reprogramming Kit -- ENGINEERED FOR PERFORMANCE
TransGo Reprogramming Kit™ valve body performance kits are made for Heavy Duty and/or Performance applications, and include additional features such as:
Gear Command™: Allows full control of downshifting and will hold any gear to any RPM. Retains automatic up shifts in the drive position. Certain units allow manual up shifts on driver command.
Manual Shift Control: This feature fully converts the valve body to manual/stick shift operation – no automatic shifts. Most Manual Shift Control kits also allow you the ability to easily convert back to automatic.
Tuneless: Patent-pending internal calibration technology “tuneless” allows install without the need for additional transmission tuning software or programmers.
Was ist ein Schaltungssatz?
TransGo Shift Kit® Ventilkörper-Reparatursätze sind eine Kombination aus neuen und überarbeiteten Komponenten, die hauptsächlich im Ventilkörper, manchmal aber auch in der Pumpe oder sogar im Getriebe selbst eingebaut werden. Diese Kits beheben eine Vielzahl von typischen Problemen und Schwachstellen, die sich je nach Getriebemodell unterscheiden, wie z. B. die üblichen Verformungen und Abnutzungserscheinungen, und ermöglichen oft, dass ein Getriebe mit höherer Laufleistung besser funktioniert als ein neues. Typische Bestandteile eines Ventilkörper-Reparatursatzes sind Federn, Ventile, Rückschlagkugeln, Dichtungen, Trennplatten, etc..
TransGo Technischer Support
Wenn Sie Probleme bei der Auswahl des richtigen TransGo-Produkts haben oder vor, während oder nach der Installation dieses Produkts Fragen haben, stehen Ihnen die englischsprachigen ASE-zertifizierten Techniker von TransGo zur Verfügung.
TransGo Technischer Support