TQ metal bearing design enables grease to flow through the bearing to the stud for reduced friction and enhanced strength and stability, Premium cover plate design allows for tighter tolerances vs traditional cover plate designs, providing a more durable and extended life for the control arm, TQ steel composition results in a stronger component, Our full-ball metal stud provides smooth, consistent, rotational movement resulting in more responsive steering, Forged, CNC-machined shell leads to high-quality, precision-made performance and additional strength, Part Reference Numbers : CB81136PR CB81136 MS251057 GS251057 CMS251057 CK643074 K620634 K643074 RK620634 CK620634 RK643074 1750152 2606787 CP1566 TK620634, Part Reference Numbers : CB81228PR CB81228 MS251058 GS251058 CMS251058 CK643073 K621897 K643073 RK621897 CK621897 RK643073 1850152 2606788 CP1567, Kit Includes: 2x Front Upper Suspension Control Arm and Ball Joint Assembly (Both Side), Part Reference Numbers : CB81136PR CB81136 MS251057 GS251057 CMS251057 CK643074 K620634 K643074 RK620634 CK620634 RK643074 1750152 2606787 CP1566 TK620634 CB81228PR CB81228 MS251058 GS251058 CMS251058 CK643073 K621897 K643073 RK621897 CK621897 RK6430