QA1 1210-103 Ball Joint, Adjustable 4-Bolt, Upper GM (K6136)

QA1's 4-Bolt Style Ultimate Ball Joint is ideal for a variety of racing applications. Exclusive to QA1 this patented self-lubricating design is 100% owner rebuildable. Multiple stud lengths are also available allowing for easy geometry changes. Infinite preload adjustment allows breakaway torque to be set as low as 0 ft. lbs. for a completely smooth bind-free operation. Precision tolerance ball-to-race conformity results in even load distribution for unsurpassed wear resistance. Precision ground 52100 bearing steel race ensures long life and ultra-smooth operation. No need to remove the ball joint from the car for adjustment. Enhanced by self-lubricating components to ensure smooth operation. Fine tune your roll center. QA1 ball joints are owner rebuildable and all parts are replaceable at economical prices. Patented self-lubricating design; 100% owner rebuildable; Multiple stud lengths; Preload adjustable for bind-free operation