Product Overview
4L60,200-4R Reverse Boost Valve Kit (Large Ratio, O-Ring Style) (S74507RDK) (K77898)
Reverse Boost Valve Kit (Large Ratio, Factory Style Sleeve, No O-Ring Type) (S74507RBK) (K77898A) GMC 700-R4 Valve Kit, Reverse Boost, (.283” OD)(1982-1993) 74507RBK 8648958
4L60,200-4R TV Boost Valve Kit (.423" Bore Diameter, "Factory" Style) (S74507JB) (77917-02K)
4L60,200-4R TV Boost Valve Kit (.423" Bore Diameter, O-Ring Style) (S74507TBK) (77917- 01K)
200-4R,4L60 TV Boost Valve Kit (.471" Bore Diameter, "Factory" Style) (S74507JA) (77917-03K)
Boost Valve & Sleeve (Progressive Line Pressure Increase) (S74507TKA) (700-R4-LB1)
200-4R,4L60 TV Boost Valve Kit (.471" Bore Diameter, O-Ring Style) (S74507TAK) (77917-471)
200-4R,4L60 TV Boost Valve Kit (.500" Bore Diameter, O-Ring Style) (S74507TK) (77917-500)
200-4R,4L60 TV Boost Valve Kit (.500" Bore Diameter, Factory Style) (S74507J) (77917-04K)
Valve Body Kit, 200-4R w/ Steel Boost Valve (Superior) (81-90) (S54165BV) (K200-4R-V)