Wear is commonly found at different areas in ZF6HP19/26/32 (Gen. 1) and Ford 6R60/6R80 pressure regulator bores. Wear at the sleeve end causes high line pressure leading to broken drums, pistons or other parts, as well as restricted converter/lubrication flow. Wear at the spring end of the bore allows low line pressure and lube/TC fluid to exhaust leading to a burned converter clutch and premature bushing failure. The Sonnax oversized pressure regulator valve kit 95740-01K restores valve-to-bore or sleeve clearances so the pressure regulator valve can maintain correct pressures.

Hardcoat anodized aluminum valve combats premature wear
Alloy aluminum sleeve is significantly more wear-resistant than the OE sleeve
Salvages valve body castings

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