Sonnax Zip Kit U140E-U241E-ZIP targets the root cause of multiple complaints by sealing the critical circuit pressure losses in the Toyota U140E/F, U240E and U241E valve bodies. The kit contains uniquely designed parts to prevent the loss of pressures within the main line, clutch apply control and lockup control circuits. The kit also seals multiple circuits known to suffer from end plug leakage or poor checkball sealing. No special tools are required for installing these parts. The Zip Kit quick guide provides clear and easy instructions on one sheet to get the unit sealed up and back on the road fast. In addition to general rebuilding tips and technical information, the technical booklet included in this kit contains vacuum testing and additional repair options for higher mileage units or for repairing specific complaints which are beyond the scope of this kit. No reaming required Installs quickly with no special tools required Uniquely designed parts address root causes of valve body complaints by sealing critical pressure circuits Detailed technical booklet included with in-depth rebuild and inspection tips for comprehensive valve body repair Contents Lockup Control Plunger Valve Kit O-Ringed End Plug Kit Accumulator Piston Kit (2) Checkballs (11) Plastic Boost Valve Kit Clutch Apply Control Plunger Valve Kit