The heavy linear force solenoids (LFS) in listed 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

Learn More About Zip Valve™ Drop-In Repairs

More From This Category

ARP Cylinder Head Stud, Pro-Series, 12-point Head, For Toyota, 2.0L (3SGTE) DOHC Custom Age 625+, Kit

ARP Cylinder Head Stud, Pro-Series, 12-point Head, For Toyota, 2.0L (3SGTE) DOHC Custom Age 625+, Kit

$718.74

Nitrous Express 5.0L Coyote And 7.3L Godzilla Plate System(50-200Hp) w/ Composite Bottle , Kit

Nitrous Express 5.0L Coyote And 7.3L Godzilla Plate System(50-200Hp) w/ Composite Bottle , Kit

$3,114.30

NOS Nitrous System, Wet Plate Kit, 2014-2019 C7 Corvette LT6.2L, 150HP, blue 10lb bottle

NOS Nitrous System, Wet Plate Kit, 2014-2019 C7 Corvette LT6.2L, 150HP, blue 10lb bottle

$2,497.39

Trick Flow Valve Cover Gaskets, Rubber with Steel Core, For Chevrolet, Small Block, Pair

Trick Flow Valve Cover Gaskets, Rubber with Steel Core, For Chevrolet, Small Block, Pair

$131.95

COMP Cams Cam / Lifters / Valvetrain Thumpr Hydraulic Flat Advertised Duration 279 / 296 Lift .4

COMP Cams Cam / Lifters / Valvetrain Thumpr Hydraulic Flat Advertised Duration 279 / 296 Lift .4

$1,356.64

CVF Racing Water Pump Pulley, V-Belt SWP, For Chevrolet Small Block, Kit

CVF Racing Water Pump Pulley, V-Belt SWP, For Chevrolet Small Block, Kit

$151.34