- Broken parts due to excessive line pressure
- Delayed engagement
- Excess heat
- Firm shifts
- Flare shifts & bind-ups
- Harsh engagement
Loss of oil pressure due to worn components in critical oil circuits.
Zip Kit seals critical pressure losses and restores and extends accumulator action.
- Pressure Regulator Sleeve
- Clutch A & E Control Boost Valve Kit (2)
- O-Ringed End Plug Kit
- O-Ringed Internal End Plug Kit
- Accumulator Piston Kits (7)
- Replacement Solenoid O-Rings 31 various pieces
- Testing Nut
- Testing End Plug
Sonnax Zip Kit ZF6-GEN2-ZIP targets the root cause of multiple complaints by sealing the critical circuit pressure losses in listed valve bodies. The kit contains uniquely designed parts to prevent the loss of pressures within the main line, solenoid regulator, reverse, clutch control and solenoid apply circuits with no special tools required.
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
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.
Click on the unit names to view all recommended Sonnax repair options for these transmissions.
This Zip Kit ZF6-GEN2-ZIP is designed for ZF6HP21/28/34 (Generation 2) applications only. A separate Zip Kit ZF6-6R60-ZIP is available for ZF6HP19/26/32 (Generation 1) and Ford 6R60/6R80 applications. To verify valve bodies, see this identification guide for further details.
- Patent No. 8,794,108
The Sonnax ZIP KIT®
The First Step in Correcting Common Shift Problems
It's easy to restore and extend vehicle shift quality with Zip Kits. Uniquely designed Sonnax parts target the root cause of valve body complaints and stop critical circuit pressure losses in the most common problem areas of the transmission.
Click here to view PDF if instructions do not appear below.
Valve Body Layouts
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