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The QA1 Ultimate screw-in ball joint for NASCAR applications is an adjustable upper mounting with a .5" extended stud. It delivers preload adjustment for smooth, bind-free motion and uses a patented self-lubricating design. The 100% owner-rebuildable construction and multiple stud-length options let race teams and builders fine-tune roll center and restore worn components economically without swapping the entire assembly.
QA1 NASCAR +.500in Stud Upper Screw-In Style Ball Joint
