8HP70, 8HP75

Symptoms:

• Broken parts
• Delayed engagement
• Excess heat
• Firm shifts
• Harsh engagement

Cause:
Loss of oil pressure due to worn components in critical oil circuits.

Correction:
Zip Kit seals critical pressure losses and restores and extends accumulator action.

Sonnax Zip Kit targets the root cause of multiple complaints by sealing the critical circuit pressure losses in the ZF8HP45/55/70 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

• Pressure Regulator Sleeve
• Priming Valve & Seal
• Internal End Plugs & O-Rings 8 End Plugs, 18 O-Rings (2 Extra)
• End Plugs & O-Rings 3 End Plugs, 5 O-Rings (2 Extra)
• Accumulator Piston Kit
• Solenoid O-Rings 24 Pieces, 5 Sizes

SONNAX Installation Instructions