Fits General Motors THM 2004R Valve bodies 1981-Up
Includes all tools, springs and valving necessary to bore Valve Body and install Hydraulic Lock Up in THM 2004R Valve bodies with " (1) Dummy Plug ". Will also work with earlier Valve bodies which already have Lock Up valving. Greatly improves the control of lock up timing and speed of apply.
Installation recommendation: Experienced technician
Transmission removal necessary: No