Product Overview
Boost Valve & Sleeve Kit (Factory Style, Small Ratio) (S56741BD-1K) (56947-05K)
A4LD Automatic Transmission Boost Valve & Sleeve Kit (Large Ratio w/ O-Rings) (S56741B-1K) (56947-02K)
Boost Valve Kit, Small .323” w/ Sleeve & O-Rings (85-95) (56741BA-1K) (56947-04K)
Boost Valve Kit, Large .388” (Factory Style) (85-95) (56741BC-1K) (56947-03K)
Pressure Regulator & Boost Valve Kit O.S. (T-56947-TL Required) (S56741PK) (56947-06K)
GM 4L60, 700-R4, 4L60E, 4L65E, 4L70E Boost Valve & Sleeve Kit (.470” Diameter, “ Factory” Style, Early Pump) (1993-2005) S74507FC 77898E-6K1
5L40E Automatic Transmission Boost Valve & Sleeve Kit (OEM Valve Spool Diameters .474" & .441") (55209-04K)
5L40E Automatic Transmission Boost Valve, Sleeve & Spacer Kit (Valve Spool Diameters .531" & .492") (55209-01K)
Reverse Boost Valve & Sleeve Kit (Factory Style, Diesel Ratio) S36741RAAK 36946-03K
4L60, 700-R4, 4L60E, 4L65E, 4L70E Automatic Transmission Boost Valve & Sleeve Kit (.490” Diameter, “ Factory” Style, Early Pump) (1993-2005) S74507FB 77898E-3K