When vehicle’s ride height is lifted, using OE upper arm as-is can cause positive camber and affect caster angle as well. Such tilts can have negative impact on vehicle’s stability and lead to uneven tire wear.

4x4 Billet Adjustable Upper Arm employs threaded adjustment, to enable finer adjustments by millimeters, for most precise and accurate alignment.

Both camber and caster angles can easily be adjusted, by loosening fastening bolt and then turning the adjustment nut with included wrench.