C-6 C6 Transmission R Code Servo Piston Kit 1968 & Up Sonnax K36528R

img{max-width:100%} C-6 R-Code Servo Piston Kit Sonnax Upgrade for FORD Vehicles Mid 1968 and UpFeatures:CoverAssemblyPin O-ringPin PTFE Seal RingMedium O-ringLarge O-ring - 2Cover GasketSelective Return Springs - 2Installation InstructionsDescription: Since it's introduction in 1969 with 428 SCJ, the R code servo has remained a trick piece for C6 builders needing additional band apply force. This kit for mid 1968 and later units features a no leak pin which uses 1 o-ring and 1 PTFE ring to eliminate back pressure and leakage due to worn case bores. More than 9 square inches of apply surface for more band apply force. No leak servo pin design allows the servo piston to be used in worn bores. Two selective return springs allow for tuning of shift quality. Some servo modifications involve blocking feed or exhaust passages in the case. These modifications must be removed. For proper operation of this servo, ensure that the exhaust passage and both oil feed passages are unrestricted.Applications:Ford Bronco 3 speed 4x4 1978-1981F100 3 speed 4x4 1973-1976F100 3 speed 4x4 1978-1983F100 3 speed RWD 1968-1983F150 3 speed RWD 1975-1991F250 3 speed 4x4 1973-1991F250 3 speed RWD 1968-1972F250 3 speed RWD 1977-1991F350 3 speed RWD 1978-1991Fairlane 1968-1970Falcon 1971LTD II 1977-1979Mustang 3 speed RWD 1967-1969Thunderbird 3 speed RWD 1968-1979Torino 1968-1976Van 3 speed RWD 1975-1996    We build all our torque converters. We will build to your vehicles specifications.  Parts ship daily from our distribution center. FREE SHIPPING on US Orders GOT QUESTIONS on your specific Year/Make/Model? Send us a message on eBay. ¿Habla español? Escríbanos con el año, la marca, y el modelo de su vehículo. Visit our eBay Store: Phoenix Transmission Parts For all of your Automatic Transmission Part needsCheck out my other items!Be sure to add me to your favorites list!