Product Overview
GM 4L60, 700-R4, 4L60E, 4L65E, 4L70E Boost Valve & Sleeve Kit (.490” Diameter, with o-rings, Early Pump) (1993-2005) S74507F 77898E-K
GM 4L60, 700-R4, 4L60E, 4L65E, 4L70E Boost Valve & Sleeve Kit (.470” Diameter, “ Factory” Style, Early Pump) (1993-2005) S74507FC 77898E-6K1
4L60, 700-R4, 4L60E, 4L65E, 4L70E Boost Valve & Sleeve (Progressive Line Pressure Increase) (1.907”) (1993-2005) S74507FS 4L60E-LB1
4L60, 700-R4, 4L60E, 4L65E, 4L70E Boost Valve & Sleeve (Progressive Line Pressure Increase) (1.810”) (2006-Up)S74507FJA (4L60E-LB2)
GM 4L60, 700-R4, 4L60E, 4L65E, 4L70E Boost Valve & Sleeve Kit (.490” Diameter, with o-rings, Late Pump) (2006-Up) S74507FJ 77898E-7K
GM 4L60, 700-R4, 4L60E, 4L65E, 4L70E Boost Valve & Sleeve Kit (.470” Diameter, with o-rings, Early Pump) (1993-2005) S74507FA 77898E-4K