Transmission Parts GM 4T65-E 4T60-E Valve Body Valve / Sleeve

Symptoms:

Erratic shifts
2-3 Shuttle
Temperature-sensitive shifts
No 3rd
No 4th
2nd Gear starts

Cause:

The non-anodized valves score and seize in the bore.

Correction:

Sonnax 4-3 manual downshift valve is hardcoat anodized with annular grooves which eliminate surface wear and reduce valve hang-up.

4T60-E, 4T65-E

4-3 Manual Downshift Valve
Part No. 84754-39K

In 4T60-E units, fits '91-later units only.

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GM 4T60-E and 4T65-E shift valves have changed materials over the years, starting with steel, changing to silver-colored uncoated raw aluminum, and finally anodized aluminum. These units can have a combination of these materials with the silver-colored uncoated raw aluminum being especially problematic due to scoring/scratching and intermittent sticking. Sonnax 4-3 manual downshift valve 84754-39K eliminates surface wear and reduces valve hang-up.

Hardcoat anodized aluminum valve combats premature wear
Annular grooves to center the valves and reduces sticking caused by side-loading
Drop-in Zip Valve™ installs quickly and easily

Learn More About Zip Valve™ Drop-In Repairs

Valve Body Layout

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.