For a variety of racing applications, QA1's Screw-In Style Ultimate Ball Joint is a great choice. This patented, self-lubricating design is 100% owner rebuildable and is exclusive to QA1. With multiple stud lengths available, geometry changes can easily be made.
 
Ultimate Low Friction Operation - Infinite Preload adjustment allows breakaway torque to be set as low as 0 ft. lbs. for a completely smooth, bind-free operation.
 
Wear Resistant Design - 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.
On-the-Car Adjustability - Infinite preload adjustment. No need to remove the ball joint from the car for adjustment.
Self-Lubricating - Fully greasable enhanced by self-lubricating components to ensure smooth operation.
Multiple Stud Lengths Available - Various ball studs are available for easy geometry changes. Fine tune your roll center.
Owner Rebuildable - Rebuilding is simple. All parts are replaceable at economical prices.