Upper Control Arm Joint Bolt size 9/16 14mm;Shank 1-14LH;Mounting width 2.32;Dual durometer bushing;1045 steel forged housing;Self centering with 30 degrees of misalignment Synergy Manufacturing Synergy Manufacturing Upper Control Arm Joint - 4801-21 4801-21 Rod Ends, Heim, Johnny & NG Joints