TransGo SHIFT KIT for 6F50 Transmissions The TransGo 6F50 SHIFT KIT® Valve Body Repair Kit is tailored for 2007 and newer Ford, Lincoln, and Mercury vehicles equipped with the 6F50 and 6F55 automatic transmissions. Users of these transmissions frequently report issues such as erratic shifting, TCC (Torque Converter Clutch) slip, and various gear ratio error codes. These issues are commonly attributed to wear in the solenoid pressure regulator valve bore, which is designed to control the pressure directed to the solenoids. The spring within this valve is precisely calibrated to cap the solenoid feed pressure, ensuring it does not exceed a set PSI regardless of the main line pressure. This calibration is crucial to prevent overfeeding the solenoids with fluid, which could lead to excessively high or low output pressures, resulting in shift quality complaints and error codes. Wear in the TCC regulator valve bore and the pressure regulator (PR) valve and bore are also contributing factors to these problems. Features and Benefits: Incorporates a new drop-in solenoid pressure regulator valve system to restore function using the existing worn bore. Introduces a redesigned PR valve with extended lands for improved regulation system reliability. Includes a novel relief system to replace the OE isolator valve lineup, preventing damage from accidental pressure spikes. Corrects/Prevents/Reduces: Erratic shifting behaviors and TCC hunting. Damage from over-boosted parts. Transmission error codes including P0729, P0731, P0732, P0733, P0734, P0735, P0741, P0751, P0752, P0756, P0757, P0761, P0762, P0766, P0767, P0771, P0772, P07A5, P07A8, P07A9, and P07AA. Kit Includes: Drop-in USA-made hardened steel PR valve and spring. USA-made hardened steel solenoid pressure regulator valve. Drop-in USA-made steel solenoid pressure regulator bushing. Solenoid pressure regulator valve spring, spacer, and retainer. Drop-in pressure relief bushing, spring, ball, and retainer. TCC control valve spring and retainer. Transmissions: 6F50 2007-2016 Vehicle FORDEDGE 2006-2016 6 SP F/4WD V6 3.5L 3.7LEXPLORER 2010-2016 6 SP F/4WD V6 3.5L 3.7LFLEX 2008-2016 6 SP F/4WD V6 3.5LFUSION 2009-2012 6 SP F/4WD V6 3.5LTAURUS 2007-2016 6 SP F/4WD V6 2.7L 3.5L 3.7LLINCOLNMKS 2008-2016 6 SP F/4WD V6 3.7LMKT 2009-2016 6 SP F/4WD V6 3.7LMKX 2006-2014 6 SP F/4WD V6 3.7LMKZ 2012-2016 6 SP F/4WD V6 3.7LMERCURYSABLE 2008-2009 6 SP F/4WD V6 3.5L Alternate Words: Automatic Transmission, Reprogramming, Improvement , Correction, Shift , Valve Body Rebuild Kit