3 Degree Axle Shims 3 Inch Wide with 1/2 Inch Center Pins 03-22 Ram 2500 03-12 Ram 3500 4WD Pair Tuff CountryTuff Country axle degree shims are installed between the rear leaf springs and the axle. Designed with a taper to rotate the rear axle to help eliminate vibrations that can sometimes occur in lifted vehicles. Details: Axle Degree Shim Kit Rotates rear axle to eliminate vibrations 3 Degree Shim Angle 3 Inches Wide Includes (4) 1 2 Inch Center Pins w Nuts Heavy Duty Cast Iron Construction Silver Zinc Finish Made in the USA Sold As A Pair Fits: 2003 2013