Product Overview
5L40E Automatic Transmission Boost Valve, Sleeve & Spacer Kit (Valve Spool Diameters .531" & .492") (55209-01K)
5L40E Automatic Transmission Boost Valve, Sleeve & Spacer Kit (Valve Spool Diameters .531" & .492") (55209-01K)
5L40E Automatic Transmission Boost Valve & Sleeve Kit (OEM Valve Spool Diameters .474" & .441") (55209-04K)
5L40E, Kit, AFL Valve & Sleeve (requires T-F-55211-TL & T-VB-Fix) (1999-Up)
Boost Valve & Sleeve Kit (Factory Style, Small Ratio) (S56741BD-1K) (56947-05K)
GM 4L60, 700-R4, 4L60E, 4L65E, 4L70E Boost Valve & Sleeve Kit (.470” Diameter, “ Factory” Style, Early Pump) (1993-2005) S74507FC 77898E-6K1
5L40E, Kit, Reverse Lockout Valve & Sleeve (requires T-F-55211-TL & T-VB-FIX) (1999-Up)