QA1 Pro-Coil Shock Kit - Twintube - Single Adjustable - Shock - Rear - GM Full-Size Truck 1963-72 Books Videos & Software Idle / 3500 RPM

Idle / 3500 RPM

Lower arm will adjust wheel base

2-7/8 in SmartTube

5mm Clear Shield

Hall-effect sensor with M12X1mm threads for finer gap adjustment

QA1 Pro-Coil Shock Kit - Twintube - Single Adjustable - Shock - Rear - GM Full-Size Truck 1963-72 Books Videos & Software Idle / 3500 RPMLooking 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