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C6 Sonnax K36528R Billet R Ratio Super Servo Update Piston Kit Fits Ford Mercury

by Sonnax
SKU S36907DK
Original price $122.74 - Original price $122.74
Original price
$122.74
$122.74 - $122.74
Current price $122.74
Availability:
in stock, ready to be shipped

Delivery time

You will receive your package in 2–5 business days within the contiguous U.S.

Brand: Sonnax Industries

Other Part Number: S36907DK

Interchange Part Number: S36905B,S36907DK

Part Brand: SONNAX PERFORMANCE

Items Included: R-Code Servo Piston, Cover, Cover Gasket, 2-Springs

Manufacturer Part Number: K36528R

Surface Finish: Aluminum / Steel / Hi-Temp Rubber Seals / Paper

Material: Aluminum,Steel

Country/Region of Manufacture: United States

Universal Fitment: Yes

Vintage Part: No

Performance Part: Yes

C6 Transmission High Performance Servo

"R" Ratio Servo Piston Kit
Part No. K36528R

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" ratio 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.

  • Largest apply area
  • 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.

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

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