Symptoms:

  • Burnt clutches
  • Line pressure instability
  • Loss of fuel economy
  • No line rise
  • Pressure loss
  • Shift concerns
  • TCC apply & release concerns
  • TCC codes

Cause:

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

Correction:

Recover hydraulic control, restore normal shift operation and save the transmission control unit by installing Sonnax Zip Kit. Drop-in parts install quickly and easily.
TD_Top_10_Products
  • 6T30 (Gen. 2), 6T31 (Gen. 3 6T40), 6T35 (Gen. 3 6T40), 6T40 (Gen. 2), 6T41 (Gen. 3 6T40), 6T45 (Gen. 2), 6T46 (Gen. 3 6T40), 6T50 (Gen. 2), 6T51 (Gen. 3 6T40) Zip Kit® 6T40-GEN2-3-ZIP

Videos

Zip Kit® Video - The First Step in Correcting Common Shift Problems
 
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