QA1 Pro Rear Weld-In Coil-Over System - Single Adj. - 12in x 110lbs/in - 3.25in Tube - Aluminum

Pro-Rear System includes two single adjustable custom mount coil-over shock kits and two 110 lb. rate springs with all mounting hardware. Upgrade your rear end with QA1's Pro-Rear System, available in double adjustable, single adjustable, and ride-sensitive valving non-adjustable options. Each adjustment provides an ideal force curve for maximized performance with evenly spaced valving changes. Commonly used in drag racing, street performance, and street rod applications. Features simultaneous compression and rebound single adjustable (DS) or independent compression & rebound double adjustable (DD) or ride sensitive non-adjustable valving options. Made with lightweight aluminum and offer ride height adjustability. All mounting and spring mounting hardware included. Revalveable and rebuildable by QA1 factory or authorized service centers. 100% dyno tested, serialized, and made in the USA. Kit includes: (2) Proma Star Shocks or Aluma Matic Shocks (2) Linear or Variable Rate Springs. Excellent DIY solution for drag, street performance & street rodders alike. Available with MOD Series, double, single or non-adjustable valving options. All mounting hardware included. Made in the USA.