QA1 Pro-Coil Shock Kit - Twintube - Single Adjustable - Shock - Rear - GM Full-Size Truck 1963-72 Books Videos & Software Hall-effect sensor with M12X1mm threads

Hall-effect sensor with M12X1mm threads for finer gap adjustment

Lower arm will adjust wheel base

Fits 2005-2014 S197 Mustangs

2019-2021 Chevrolet Silverado 1500

Idle / 3500 RPM

QA1 Pro-Coil Shock Kit - Twintube - Single Adjustable - Shock - Rear - GM Full-Size Truck 1963-72 Books Videos & Software Hall-effect sensor with M12X1mm threadsLooking to keep your factory truck arms, but still want coil overs for adjustable ride height? QA1's C10 bolt on rear suspension system is designed to convert trucks originally equipped with a coil spring rear suspension to coil overs. This system integrates adjustability into multiple areas so you can truly fine tune the geometry to create the perfect performance after lowering. , , By converting the coil spring rear suspension to adjustable coil