QA1's Aluma Matic Pro rear weld-in coil-over system for 3.25" axle tubes features a 175/350 lb/in variable-rate spring set and ships complete with two shocks, two springs and all mounting hardware. Multiple valving options let builders tune rear damping for street or drag applications. This weld-in rear package is positioned as a ride-sensitive solution and is manufactured in the USA.
QA1 Pro Rear Weld-In Coil-Over System - RideSensitive - 12in x 175/350lbs/in - 3.25in Tube- Aluminum