Take advantage of these great new sizes! These spacers move your wheels out to help fit wider tires and give your vehicle a wider track and improve stability. Constructed of double anodized black thick machined aluminum for long life and extra corrosion resistance. All hardware is grade-8 for extra strength. Each part number comes as a spacer pair. Included are 10 pre-installed grade-8 wheel studs and 10 lug nuts.. This pair of 1.375 inch black aluminum wheel adapters from Rugged Ridge convert a 5x4.5 inch to a 5x5 inch bolt pattern.