Vehicles with Ford E4OD and 4R100 transmissions frequently have problems with poor line rise and/or soft shifts. These complaints are often caused by severe wear of the pressure regulator boost sleeve, allowing EPC and Reverse boost oil leakage. Sonnax boost valve kit 36424-01K eliminates these problems.

• O-Rings provide additional protection against leakage at the sleeve bore
• Sleeve manufactured from highly wear-resistant aluminum alloy
• Hardcoat anodized aluminum valve combats premature wear
• Drop-in Zip Valve^™parts install quickly and easily