QA1 Pro Coil System Coil Over Conversion Kit - Front - 450 lb/in Springs - Hardware Included 51115222 and 1-1/8"-16 for most popular

and 1-1/8"-16 for most popular 3-5/8" O

325 lph at 40 psi

Crank Flange

Manufactured from lightweight

QA1 Pro Coil System Coil Over Conversion Kit - Front - 450 lb/in Springs - Hardware Included 51115222 and 1-1/8"-16 for most popularThese QA1 GM Pro Coil Systems are available for 1958 1970 Impalas and Full Size GM vehicles, including Full Size Chevy, Buick, Oldsmobile and Pontiac models, and are a great option for anyone looking for fully adjustable ride height and valving control. Choose a spring rate and adjustability that fits your driving style, adjust the valving to match and you are on your way. These shocks also utilize a fully threaded body that allows you to adjust your