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C6 "R" Ratio Servo Piston Kit - Ford

C6 "R" Ratio Servo Piston Kit - Ford
C6 "R" Ratio Servo Piston Kit - FordFord C6 "R" Ratio Servo Piston Kit Servo Piston Kit -C6 "R" Ratio  Ford
Price: $270.85
Part Number: SX-K36528R
Since its introduction in 1969 with the 428 SCJ, the R-code servo has remained the trick piece for C6 builders needing additional band apply force. Ford last offered an OEM replacement in 1992. Sonnax is reintroducing this servo kit with our unique "no-leak" servo pin. This pin uses one o-ring and one Teflon® seal ring to eliminate back pressure and leakage due to worn case bores.

The kit includes: piston and pin, cover, gasket, high temperature o-rings, pin seal ring and two selective return springs. For a refresh kit including the four o-rings, pin seal ring and gasket, ask for K36528R-SK.

Over 9 square inches of apply surface results in 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


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