Description: High Quality 2" Steel Leveling Drop Shackles Bolt-On Kit Installs with basic hand tools Heavy Duty Polyurethane for superior strength Rigorously tested off road to guarantee safety Corrosion & Oxidation Resistant finish Appllication: 1975-1987 GMC C/10 1975-1987 Chevrolet C/10 Country of Origin United States UPC Does not apply Brand autoooparts Manufacturer Part Number APO155672 Placement on Vehicle Rear Fitment Type Performance/Custom Warranty 1 Year Quantity 1x Set Of Lowering Shackles Specifics Wheel Alignment Is Required After Installation Note Professional Installation Is Highly Recommended .