Leaf Spring Shim Kit, 8 Qty 1/4" ShimsIncludes Center pins Kit comes with Qty 8 of 1 4" shims, 4 for each side of the truck. Includes roll pins to lock the shims together Use these shims to soften your leaf spring rate or change your ride height. You can use more shims on one side to correct a leaning truck. Can be used between each leaf in a 2,3,4 or 5 leaf pack. This universal kit can be stacked under the spring in 1 4", 1 2", 3 4" and 1" as a lift block held on by the center pin. You