fairbanks performance 4r100 1989-nanOE-quality automatic transmission component designed to support proper operation, fit, and durability when installed according to specification.WHAT'S IN THE BOX:- Fairbanks performance 4r100 1989-nan (SO-77917-01K) Valve Body Kit - replacement component designed for proper fit and function in the intended application Designed to support proper hydraulic routing, shift quality and pressure control during valve body service Package Includes: one valve body kit as described, supplied loose for valve body service Valves, springs and separator components sized to the original bores - designed for dependable service in the intended application. Ships at 0.50 lb, 7x7x2 in Intended for builders correcting shift complaints. Lay the parts out in order, keep the check balls seated and torque the bolts in sequence