JOES Racing’s new Axle Spacer System, utilizing a Split Cone Spacer set, allows you to move the wheel in or out without searching for right size spacer. Once you have your baseline spacing correct on your axle - you simply move the existing spacers from the inside of the wheel to the center of the split cone or vice versa. Make changes quickly as all the spacers you need are already on the car. The JOES Split Coned Spacer Kit allows you to just move spacers from one side to the other with and the spacing stays the same - the wheel offset is changed in seconds without the need of fumbling around for the correct width on your hub wrench. The JOES Kit includes the following, Split Cone Set, 4 of the ¼” & 1 of the ½” spacers. Most cars will require an additional spacer between the System & the Birdcage. Text is great, but clicks here for a Video Demonstration of how the JOES Axle Spacer System works: JOES Micro Sprint Split Coned Spacer Kit Video Instructions.