Increase the height of your Car : These will raise the front of your truck by 3 inch and the rear of your truck by 2 inch, Because of suspension geometry,the ratio between lift height and kit thickness is not 1:1 Appropriate application : Compatible with 2007-2023 Silverado 1500/ Sierra 1500 Pickups Aggressive look : Once you install it on your truck,it will give your truck a cool look.Accurate numerical control precision and high quality, ensure your driving safe and comfortable Process and Material : Forged from 6061-T6 aluminum alloy,CNC automatic processing,surface anodic oxidation and heat treatment,not only ensure high precision and stability,but also enhance the hardness and corrosion resistance of the material,The product itself is also equipped with 12.9 class studs Easy Install: Installation can be completed within 1-2 hours,No cutting and drilling required and does not require strut/coil disassembly like other kits