QA1 Pro-Rear Twintube Coil-Over Rear Single Adjustable Shock Kit - 1301-1550 lb - Progressive 130-250 lb/in Spring Rate Coilover Adjuster Tool 2003-2007 Blue Bird All American

2003-2007 Blue Bird All American FE

Mini Sprint Car

snag-free cuts every time

1965-1967 Chevrolet El Camino

QA1 Pro-Rear Twintube Coil-Over Rear Single Adjustable Shock Kit - 1301-1550 lb - Progressive 130-250 lb/in Spring Rate Coilover Adjuster Tool 2003-2007 Blue Bird All AmericanUpgrade your rear end with QA1's Pro Rear System. Available in double adjustable, single adjustable and ride sensitive valving non adjustable options,each adjustment has been carefully defined to provide the ideal horse curve to maximize performance. With evenly spaced valving changes throughout the adjustment range, there are no jumps when adjusting between any two clicks. These Pro Rear Systems are commonly used in drag racing, street performance