Patented technology allows the fully greaseable ball joint to be enhanced by self-lubricating components to ensure smooth, low-friction operation. Breakaway torque may be set as low as 0 ft-lbs thanks to unlimited preload adjustment and bind-free operation. The wear-resistant design utilizes precision tolerances, resulting in even load distribution for unsurpassed wear resistance. Long service life and exceptionally smooth operation are achieved by precision ground steel bearing races. Don't forget to pick up a QA1 Ultimate ball joint rebuild tool for quick adjustments or rebuilds.