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"R" Ratio Servo Piston Kit

Part No.

K36528R

C6

  • "R" Ratio Servo Piston Kit

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"R" Ratio Servo Piston Kit

Part No.

K36528R

  • Cover
  • Assembly
  • Pin O-Ring
  • Pin PTFE Seal Ring
  • Medium O-Ring
  • Large O-rings (2)
  • Cover Gasket
  • Selective Return Springs (2)

Mid '68-later

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. Sonnax R code servo kit K36528R for C6 (mid 68-later) units features a no-leak pin which uses one O-ring and one PTFE ring to eliminate back pressure and leakage due to worn case bores. A replacement seal kit K36528R-SK also is available.

  • 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
NOTE:

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.

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Contact a Sonnax Distributor to purchase this part.