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Flare upshifts or downshift bind-ups are common problems in vehicles equipped with ZF6HP19/26/32 (Gen. 1) and Ford 6R60, 6R80 transmissions. These problems can be accompanied by a coastdown neutral condition, or pressure control out-of-range codes. The clutch control valve controls clutch apply and release timing, and problems occur when the clutch control valve wears. To fix these issues, Sonnax offers the oversized clutch A control valve kit 95740-09K to restore shift timing and vehicle drivability.
Kit is NOT compatible with ZF6HP21/28/34 (Gen.2) units. To differentiate between Gen. 1 and Gen. 2 valve bodies, see ZF Identification Guide.