Corrects, Prevents, Reduces: Erratic Pump Slide Bounce That Wears Out Pump And Valves. No Lock-Up Or 4Th And Code 1870. Cutloose & Bang From Reverse To Drive; Forward And Low/Reverse Clutch Burnup; 1-2 Bump; Double Bump; Slide-Bump; Delayed Reverse Engagement. Will not fit Hybrid units.