Symptoms:

  • Loss of shift solenoid control pressure
  • Erratic line pressure
  • Pressure loss
  • Poor shift quality
  • Various shift concerns
  • Burnt clutches
  • Low converter & lube flow
  • Park release issues
  • Overheating

Cause:

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

Correction:

Recover hydraulic control and restore normal shift operation by installing Sonnax Zip Kit. Drop-in parts install quickly and easily.
  • 9T45, 9T50, 9T60, 9T65 Zip Kit® 9T45-ZIP
Sonnax Zip Kit

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, drop-in 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.

Learn More About Sonnax Zip Kits