RIDE HEIGHT ADJUSTMENT SHIM 0.125 THICK, FRONT SUSPENSION SPRING SEE #13 IN ILLUSTRATION. FITS 1980-1987 XJ6 AND ALL XJS. Add or subtract these to adjust front ride height. Each ring adjusts the front ride height by approximately 3/16 inch. You can use a maximum of two rings per side. If you need more than two then you need new springs. SOLD ONLY AS A PACK OF 2 (C41271)