UMI's rear weight jack system for 1982–2002 GM F-Body race use offers ride height control with premium components. The kit includes custom springs (race rate recommended), unique spring perches with Torrington bearings, and a heavy-duty jack screw adjustable with a 3/4" socket. Fitment is for factory and Strange Engineering rear housings only (minor grinding required). Springs are made from US CrSi wire, include upper poly isolator, and are manufactured in the USA.
UMI Performance 82-02 GM F-Body Rear Weight Jack System 0lb Race