Road Fury high-performance shock extenders by American Automotive are made of CNC Machined Laser Cut from 1/4" High Strength Carbon-steel. Shock extenders are highly recommended to put your shocks back to the stock location after installing a leveling lift kit. Our shock extenders are engineered reduce over extending the shock piston refining the performance of your ride. All American Automotive products are made in the America and come with a lifetime warranty.