Add A Leaf Kit 2 Inch Rear 99-Up Chevy Silverado 1500 4WD Tuff CountryTuff Country add a leafs are an economical solution to lifting vehicles with leaf springs. These add a leafs are designed to be added to existing stock leaf springs to give a small amount of additional height or lift to your vehicle and gain additional payload capacity. Details: Location: Rear Size: 2 Inch 1999 Up Chevy Silverado 1500 4wd Sold as Pair Add a leafs are an economical method of lifting vehicles with leaf springs Strengthens old, weak leaf