GM SHKL KT 1.5OD 2/4WD ALL 89-98Leaf Spring Eye/Shackle Bushing Kit; Red; 1.5 in. O.D.;Premium Grade Polyurethane ComponentsPrecision Fabrication Assures Perfect FitIn leaf spring-type suspensions there are significant forces focused on the pivot points and shackles. For this reason, it is imperative to replace the soft, blown-out OEM rubber bushings with Prothane premium grade polyurethane components. All related sleeves, etc.. are precision fabricated to assure a perfect fit.LeafSpShclBsh