The stock eccentric bolts provided by Nissan for small camber and caster adjustments tend to slip under high cornering loads, causing changes to your front alignment. Our SPL Parts Eccentric Lockout (EL) kit eliminate the stock eccentric bolts to keep your rear alignment where you set it. You must have adjustable upper control arms in order to adjust camber and caster after eliminating the stock eccentric bolts. Our lockout plates are CNC machined from 6061-T6 Aluminum and supplied with zinc plated grade 10.9 bolts and locknuts for absolutely zero-slip. One kit includes washers and bolts for front lower control arms.