1 FITMENT : Compatible with 1999-2023 Silverado 1500, 1999-2023 Sierra 1500 Package included : 2 X 2 inch Rear blocks and 2 X U Bolts 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 machined steel 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 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