These direct-fit front upper control arms add strength, on-car adjustability and articulation flexibility to your stock-height or 'lifted' suspension Wrangler. They feature SPC's xAxis sealed flex joints mounted in forged rings at the frame ends to provide bind-free 'twist' between the frame and axle during off-road articulation. The dual-threaded adjuster and jam nuts make caster/pinion angle adjustments quick and easy without the need to disconnect the arms or mess with cams and slotted hole knock-outs. Main tube is 3/16" wall DOM steel for 'overkill' strength to handle large tires, low gearing, and big horsepower. California Residents WARNING Product appearance and features may vary in the market as design changes, improvements and modifications are implemented.