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700, 700R4, 4L60, 4L60E 4L65E SONNAX SERVO RELEASE CHECK VALVE (S74480C) (77701-076)
700, 700R4, 4L60, 4L60E 4L65E SONNAX SERVO RELEASE CHECK VALVE (S74480C) (77701-076)
 
Our Price: $26.77

Quantity in Stock:100

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Product Code: 320735673115
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Description
 
SECONDARY COMPLAINTS
Poor 2-3 shift feel, 3-2 tie-up
THE CAUSE
Inadequate metering of the 2nd band servo release oil.
CORRECTION
This part combines an orifice with a ball check valve to meter servo release oil. Sonnax Part Summary
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 700-R4 transmission was
first 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 has now developed a
unique solution that combines an orifice with a ball check valve and solves these problems.
Features & 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

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