FABRICATED UPPER CONTROL ARMS 2020 CHEVROLET/GMC 2500HD/3500HD GM HD Silverado/Sierra 2500/3500 HDXtreme-Duty 4130 chromoly fabricated upper control arms with corrected pivot cups for use with leveled or lifted trucks. Includes ReadyLIFT stronger, longer lasting outer and inner TCT pivot bushingsPivots are self-lubricating with a free-float inner sleeve and side-biter washers. Anthracite gray powder coat finish.