Sonnax 22771-12K Valve Body Detent Ball & Sleeve Kit

The Sonnax valve body detent ball and sleeve kit 22771-12K allows the valve body to be salvaged when the detent ball bore becomes worn. The detent ball in the valve body wears into the aluminum bore due to continuous movement and vibration of the linkage, creating excessive looseness in the manual valve lever and allowing the manual valve to move out of alignment. No start or being stuck in Park can occur from the manual valve being out of position due to extra clearance.

Key Features:

• Precision steel sleeve restores worn valve body and properly supports the detent ball
• Precision-ground steel ball included for optimal fit with the replacement sleeve
• Kit is designed to fit both the short and long OE detent bore designs
• Kit includes sleeve and ball

Installation Notes:

The bore must be oversized using the self-guiding bench reamer included in Sonnax tool kit 22771-TL12. A .096" diameter drill bit is also included to allow the retaining pin hole to be redrilled for use with the OE pin. Sonnax detent spring 22771-36 is also available separately. Although this fix is compatible with 48RE units, the bore diameter in some units will be smaller and may cause potential reamer piloting issues.

This kit provides a cost-effective repair solution that eliminates the need for complete valve body replacement, restoring proper manual valve operation and preventing no-start conditions or Park engagement issues.