L1967-UP l1967-up (fairbanks) posi-shift 2-stage packnanOE-quality automatic transmission component designed to support proper operation, fit, and durability when installed according to specification.WHAT'S IN THE BOX:- L1967-up (fairbanks) posi-shift 2-stage packnan (SK-51310-2) Valve Body Kit for AC60E - replacement component designed for proper fit and function 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 1.00 lb, 18x16x5 in Intended for builders correcting shift complaints. Lay the parts out in order, keep the check balls seated and torque the bolts in sequence