Fits 1967-1969 GM F-Body and 1968-1974 GM X-Body with bumpstops located on the front side of the lower A-arm;Eliminates lower A-arm deflection;Improves steering feel and response for normal and performance driving;Increased high-speed stability;Laser-cut, CNC-formed plate steel braces for extra strength;Fixture welded for precise fit;Internally fluted, high durometer polyurethane bushings;Two additional degrees of positive caster built into a-arms;Pre-assembled with new polyurethane bumpstops;Includes new upper ball joints;Durable powdercoat finish;Proudly made in the U.S.A.