Alignment arms allow you to adjust your wheel positioning by allowing for camber (inward or outward tilt), Caster (forward or backward positioning), and Toe (centering of the wheel when viewed from above) adjustment to desired specs. Alignment plays a pivotal role in tire wear for daily driving as an improper alignment will wear tires prematurely. On the contrary, racers may desire alignment specs that are non OEM to maximize grip or rotation. Making sure your arms are adjustable and the bushings are still stiff will help keep your alignment locked wherever you want it.