Fits 1970-1981 GM F-Bodies;Fits 1975-1979 GM X-Bodies;Manufactured from heavy-duty 1.25-inch, 0.095-inch wall DOM tubing;Laser-cut, CNC-formed steel plate braces;Greaseable, 95-durometer polyurethane bushings;Includes new ball joints;Preassembled with new polyurethane bump stops;Eliminates lower A-arm deflection;Non-adjustable;Requires less shim stack for negative camber than OE arms;Two additional degrees of positive caster built into A-arms;Improves steering feel and response for normal and performance driving;Available in red or black hammertone powder coat for long lasting good looks;3-4 hour installation time;Proudly designed in the USA!;Proudly made in the USA!