KSP Leveling Lift kit comes with aircraft aluminum strut spacer ,new fabricated rear lift blocks and extended U bolts. And It will raise your Chevrolet/GMC truck by a true 3" in the front and 2" in the rear. To correct the stance of your vehicle and provide additional lift to get more ground clearance or run up larger tires.Can be installed in about 2-3 hours and does not require strut/coil disassembly like other kits. Fitment: Years Make Model Rear Block is 3'' thickness, Silverado sierra 1500 have 1'' stock block, it will provide additional 2'' lift. NOTE: If your vehicle don't have 1'' stock(factory) block, it will provide additional 3'' lift. NOT compatible with ARC/MagneRide/Auto-Ride/Air-Bag, or any other Self-Leveling Suspension System For 2019+ Silverado Sierra 1500, not fit "MONO-LEAF" leaf spring, AT4, TrailBoss Features: Will Raise your Chevrolet 3" Front and 2" rear Keep Factory Ride To correct the stance of your vehicle Provide additional lift to get more ground clearance or run up larger tires Less than 3" thickness but lift 3" due to the suspension Geometry, you can check the Chevy Silverado & GMC Sierra leveling kits before and after. Front 6061-T6 billet aluminum strut lift spacers Precision CNC machined front spacer for a perfect fit Black anodized surface to improve aluminum and avoid corrosion 2" Rear fabricated steel cross blocks designed for superior strength Rear blocks are tapered to correct the pinion angle Texture black powder coated finish Installation Instructions included, No drilling or cutting required