Our ZF5HP-19 PR valve is a simple fix with no reaming or special tools required.
5-land style pressure regulator valve body only ( see PHOTO for I.D. )
 
The ZF5HP-19 Pressure Regulator Repair kit is a simple fix you can do while the transmission is still in the vehicle. This kit addresses the PR valve malfunction that causes rough or bangy shifts complaints. Be sure to identify your valve body. This fits the 5-land style pressure regulator valve body only.
Corrects/Prevents/Reduces:
Runaway pressure that breaks drums
Kick-down bang
Harsh shifts