*CASTER/CAMBER SHIMS* These shims provide positive caster changes on vehicles by installing them between specific suspension components or the chassis. Stackable for larger changes. *COSMO SHIMS* Machined steel takes the punishing 4WD environment. Install between the steering knuckle and the spindle. *FULL CONTACT NYLON SHIMS* Adjust camber or toe with our full contact rear shims. For either camber or toe, these nylon shims are available with 9 different angles - giving you the ability to install the exact alignment change needed.