The 2.5" Front and 2" Rear Leveling Lift Fitments: 2007-2023 Silverado 1500 2007-2023 Sierra 1500 DESCRIPTION: * Give it a more even stance to enhance its appearance * Offers extra ground clearance to enable the use of larger tires & wheels * T6 heat treatment CNC milling 6061 aluminum billet for Accuracy and strength * Surface anodizing and heat treatment,and hardened grade 12.9 bolts are installed in advance * The extended black coated U-bolt ensures strength and provides beautiful appearance * T6 Billet Aluminum Strut Spacers ensures high precision and stability,and also improves the hardness and corrosion resistance of the material * No Cutting or Welding is Required. Install and Enjoy! Notice: This kit will raise the front of your car by 2.5 inch and the rear of your car by 2 inch.Due to the geometry of the suspension,the ratio of lifting height to kit thickness is not 1:1.The actual thickness of the leveling lifting kit itself is less than the lifting height. Model Compatibility : 2.5" Front and 2" Rear Leveling Lift Kits for 2007-2023 Silverado 1500 2007-2023 Sierra 1500 Lifting Height : This kit will raise the front of your car by 2.5 inch and the rear of your car by 2 inch.Due to the geometry of the suspension, the ratio of lifting height to kit thickness is not 1:1. The actual thickness of the leveling lifting kit itself is less than the lifting height Process and Material : Forged from 6061-T6 aluminum alloy, CNC automatic processing, surface anodizing and heat treatment,and hardened grade 12.9 bolts are installed in advance, which not only ensures high precision and stability, but also improves the hardness and corrosion resistance of the material Easy to Install : The leveling Lift Kits is equipped with everything you need for a simple bolted installation. This process can be completed within 2 hours without preloading,cutting or modifying any factory parts Service and Warranty : All PROEZE products are guaranteed for two years