The Bluestreak Performance billet 6r80 transmission parts are the next step in making your Ford 6r80 able to support over 1000whp! They are a direct replacement of the weak stock parts and will not change any function of the trans or require any additional tuning. The Billet 6R80 planetary gear,  6R80 sun gear, forward shaft, billet one way clutch are all necessary for any serious builds including superchargers, turbo, nitrous or N/A. MUSCLEPARTS is an Authorized Dealer for Bluestreak Performance parts