Our Camburg upper arms are designed to address the limitations of stock upper arms when lifting your truck. By replacing the stock ball-joint with a uniball bearing, we improve wheel travel and durability under extreme conditions. We also enhance the vehicle's alignment, driving characteristics, and handling by adjusting the camber curve and adding more caster. Our arms feature stronger FK 3/4" chromoly heim joints for additional camber and caster adjustment, eliminating flexing and deflection during hard use and braking. Using advanced CAD/CAM engineering software and our FARO laser scan arm, we ensure precise design and fit. The arms are manufactured in-house, with CNC laser-cut and bent tubes that are MIG welded in precision fixtures. They are then sandblasted and powder-coated for durability. Our in-house CNC machine shop produces all the machined parts, including the uniball mis-alignment spacers made from heat-treated stainless steel. The arms come with all necessary hardware for installation and are made in the USA. They are designed for 1-3" of lift, increase usable wheel travel, correct camber and caster, and eliminate weak factory ball-joints.