TQ powdered metal gusher bearing design enables grease to flow through 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 ball joint, TQ engineered steel composition results in a stronger component. Our full-ball metal stud provides smooth, consistent, rotational movement resulting in more responsive steering, TQ greaseable socket design allows new lubricant to flush contaminants from the assembly, reducing corrosion and wear, Forged, CNC-machined shell leads to high-quality, precision-made performance and additional strength, Manufactured with CNC tooling, automated grinding and assembly lines for increased consistency, Part Reference Numbers : B90434PR B90434XL B90434 GK90434 MK90434 K90434 104322 2601581 TK90434, Kit Includes: 2x Front Lower Suspension Ball Joint (Both Side), Kit Variations: K72-100979