Tired of constant driveshaft vibration? Correct your pinion angle with a set of our ALL-STEEL leaf spring degree shims. Lifting yourXJ has created new driveline angles. These degree shims are great for tilting the axle up for a "closer to stock" pinion angle that is important to avoid undue wear and tear on your driveshaft, transfer case, etc. They come zinc plated and even give you about 1/2" of lift! You also get longer centering pins to accommodate the extra lift. Available in 2, 4, 6 and 8 degrees so you can customize your pinion angle!