Sonnax highlights the solenoid stabilization clip insert #105740-01K for Ford and GM 10-speed transmissions. Sonnax says users can secure LFS solenoids in GM 10L80 and 10L90 as well as Ford 10R80 and 10R140 transmissions with this product, used in conjunction with OE spring retainers.
These steel clip inserts force the OE spring retainers to completely fill the casting and solenoid groove gap and prevent the retainers from future collapse, the company says.