QA1 1210-285B Ultimate Ball Joint, Upper, GM A/B/F/G/X-Body

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.

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."