Lifted trucks lose caster which wears tires and leads to wandering at high speeds. These adjustable front upper control arms improve droop travel, drivability and tire wear as well as adjusting tire position in your wheel well. Featuring a greaseable ball joint that can be replaced and rubber isolated xAxis™ bushings, these arms are designed to correct alignment angles while maintaining factory ride quality. SPC's tubular steel design provides the strength and durability needed for the most demanding environments. These remove and replace arms are sold in pairs.