The Cam Bolt Kit is a replacement for the OE adjusters. The OE bolts on Toyota trucks and SUVs are frequently "frozen" and do not allow for adjustment. Remove the bolt assembly and replace it with an SPC cam kit to get up to +-1.50deg camber and caster change. OE adjuster assemblies that are severely corroded may require SPC's press tool 40915 for removal, making the job quick and easy. California Residents WARNING