Considering that the silverado doesnt have springs, no. Well actually let me correct myself. Only the nnbs (07+) have front springs. Anything older than that has leaf springs in the rear and torsion bars up front. You can go an add-a-leaf spring, this adds a spring bar to your rear leaf packs which can give you more lift, however a much higher spring rate which can cause poor driving quality when there is no load in your bed. Myself, i went with a larger rear block over my leafsprings which gave me the increased height and didnt sacrafice ride quality.