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6L80 6L90 6L45 6L50 Clutch Select Valve Spring Kit (2006-2010)

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 Product Description

Mid 2010-earlier GM 6L45–6L90 applications have a tendency to set a P0751 (shift solenoid 1 malfunction) code. One of the causes of this is the OE spring force at the clutch select valves inhibiting movement of the valves, affecting proper control of clutch apply fluid.

Early-model production has updates made to reduce the spring force, however the updated springs are not available separately from OE, only as part of a new and expensive lower valve body.

Sonnax clutch select valve spring kit 104740-02K updates these springs to the correct lower load to prevent the P0751 code.

  • No special tools required
  • Avoids expensive lower valve body replacement

Additionally, updates were made to the OE separator plate to further improve clutch feed pressure, clutch backfill exhaust pressure and compensator feed pressure.

If the unit's separator plate is NOT the updated version, Sonnax recommends replacing the plate with the updated version when using this spring kit.

See instructions for details.

  • Springs (2)

Sonnax Part Number: 


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