Fits 1964-1972 GM A-Bodies;Manufactured from heavy-duty DOM steel tubing;Laser-cut, CNC-formed steel plate braces;Greaseable, 95-durometer polyurethane bushings;Includes new ball joints;Preassembled with new polyurethane bump stops;Non-adjustable;Eliminates A-arm deflection;Requires less shim stack for negative camber than upper OE arms;Two additional degrees of positive caster built into upper A-arms;Provides additional header clearance;Improves steering feel and response for normal and performance driving;Available in red or black hammertone powder coat for long lasting good looks;4-5 hour installation time;Proudly designed in the USA!;Proudly made in the USA!