November 14, 2016
Vehicles with Ford AODE, 4R70W, 4R70E, 4R75W or 4R75E transmissions can have complaints of no Reverse and/or no 4th Gear. These can be the result of low pressure in the respective apply circuits failing to apply the bands, and/or burning the bands over time. Installing Sonnax O-ringed 3-4 shift valve end plug kit 76948-49K can eliminate this leakage by providing a positive seal at the casting bore. The drop-in Zip Valve™ installs quickly and easily.Learn More About Zip Valve™ Drop-In Repairs
Sonnax valve body layouts provide a detailed overview of individual units making it quick and easy to determine what’s available for the specific valve body you’re working on. See all Sonnax valve body layouts.
Vacuum testing at the port(s) indicated fails to hold the recommended minimum in-Hg, or if wear is visually detected.