Billet Aluminum Gets rid of excess play in rack Anodized black As we all know, the X3 steering rack system almost always has some excess play in it. We offer our X3 rack support as a quick and easy solution to this problem. The double sheer set up prevents the rack from moving up and down; which you will ultimately feel in the wheel. Get rid of the excess play with our X3 steering rack support. Our rack support is made from 6061-T6 aluminum and is anodized black for a solid, sleek look.