Solenoid Stabilization Retainer

Solenoid Stabilization RetainerPart No. 105740-19K Package Quantity: 6 The heavy linear force solenoids (LFS) in listed Allison, GM and Ford 10-speed transmissions are held in place by small spring retainers that are prone to collapse. When the retainers collapse, the solenoid wobbles in the bore, causing damage to the casting at the clutch valve bore opening. These LFSs actuate by extending a small pintle about .090" to stroke the inboard clutch control valve. When the spring retainer collapses and the LFS is off-center, the pintle cannot stroke the clutch control valve appropriately, resulting in shift complaints and converter issues. Valve body damage can also occur if the LFSs remain loose, resulting in valve damage during rebuild. Sonnax solenoid stabilization retainer 105740-19K replaces OE clips and provides 32% more surface area to create more support for the solenoid. Another design upgrade is the top of the clip is rolled over to create a positive stop for the flexible side to land against, furthering the prevention of retainer collapse. 32% More casting-to-solenoid surface area for better support and leverage Positive stop retainer feature to prevent collapse Drop-in Zip Valve™ parts install quickly and easily Symptoms: Loss of shift solenoid control pressure Poor shift quality Various shift concerns Burnt clutches TCC apply & release concerns Damaged valve body casting Cause: The small OE spring steel retainers used to hold the heavy solenoids in the valve body are prone to collapse, allowing the solenoids to wobble in the bore and preventing them from properly controlling the shift processes. Collapsed spring retainers also allow the solenoid to damage the casting at opening of the clutch valve bores. Correction: Securely hold the solenoid in place with Sonnax solenoid stabilization retainers. The improved Sonnax design adds 32% more surface area to contact the casting/solenoid interface for better support and levera