, , ,

77979


Servo Release Check Valve Kit 2nd Gear Servo Release

 

$11.04

Servo Release Check Valve Kit

2nd Gear Servo Release

 

Technicians would like to find a way to successfully extend the life of 3-4 clutches, and improve the 2-3 shift feel. They have been trying, with limited success, since the GM 4L60 (TH700-R4) and 4L60-E series transmissions were introduced. Inadequate metering of 2nd gear band servo release oil causes 3-4 clutch failure. The 3-4 clutch and 2nd Gear band are not properly synchronized. Sonnax servo release check valve kit 77979 is a unique solution that combines an orifice with a ball check valve to resolve these problems.

  • Improved design meters servo release oil, reducing 3-4 clutch failure
  • Provides sufficient exhaust so that 3-2 downshifts are smooth
  • Calibrates 3-4 clutch feed orifice without creating shift concerns
  • Drop-in Zip Valve™ parts install quickly and easily

 

Note

Must be used with properly functioning OE capsule.

Contents

  • Valve
  • O-Ring
Weight .05 lbs
Dimensions 6 × 4 × 1 in

You may also like…