Product Description
Fits: GM 200-4R
Valve body shift kit with boost valve for the GM TH200-4R. Throttle valve sticking is a common 200-4R problem, and this shift correction package deals with it by changing two springs in the valve train, which can put valve bodies sitting unused back into service.
Specifications
| Manufacturer part number | Superior Transmission Parts K200-4R-V |
|---|---|
| Boost valve | .471, replaces worn OE valve |
How it works
New pressure regulator and line bias springs give full, positive pressure rise response. Poor pressure rise can cause premature failure.
The kit supplies a big TV boost valve and valve body modifications. The boost valve keeps apply pressure up to the needed capacity and delivers it to the band and clutches quickly.
It corrects sloppy 1-2 shifts, erratic 4-3 shifts, throttle valve sticking and inadequate line pressure rise, and it extends band life. A high performance version (K200-4R-HP) is offered for street rods, racing and extreme heavy duty use.
