Compatible Vehicles: 2007-2020 Chevy Tahoe | 2007-2020 Chevy Suburban | 2007-2013 Chevy Avalanche 1500 | 2000-2020 GMC Yukon 1500 2WD/4WD. *(Does NOT fit vehicles equipped w/MagneRide / Auto-Ride / Air-Ride / Self-Leveling Suspension Systems.) Lifting Height | Will raise the front of your truck by a 3.5 inches and rear by 3 inches. Lift spacer thickness and lift is not a 1 to 1 ratio. The spacer thickness is less than the lifting height. Excellent Strength: The front spacer are powdercoated black CNC machined out of billet aluminum. Unique design rear lift spacers precision CNC manufacturing, perfect fit. Strong, corrosion resistance and anti-rust. Excellent Function: Increases ground clearance, allowing you to fit larger custom rims and tires. Provide enough ground balance. Maintains your original OEM ride quality, steering quality and driving comfort. Easy Install: Simple bolt-on installation in about 1 1/2-2 hours and does not require special tools. A front end alignment back to factory spec is recommend after install.