When you change your wheel and tires on your Jeep, depending the size you may need wheel spacers. These 1.375 inch wheel spacers/adapters move your wheels out to help fit wider tires while at the same time converting your 5x5 bolt pattern to 5x4.5 bolt pattern. This will allow you to use Jeep TJ/YJ wheels on your JK. Hub centric design to assure wheel balance.
Each kit comes with (2) aluminum spacers, (5) grade 8 wheel studs pre-pressed in each spacer, and (10) lug nuts. This kit bolts on in the same manner as installing a road wheel.