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SunCoast Diesel Servo Release Check Valve Kit - SC-77701-076

SC-77701-076
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844-623-7278

Description

SERVO RELEASE CHECK VALVE

Features and Benefits:

  • 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

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 (700-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 77701-076 is a unique solution that combines an orifice with a ball check valve to resolve these problems.

 

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