Core made of High-Carbon AISI 52100 Chromium Alloy Steel features higher wear resistance, fatigue strength and steel hardness, TQ USA-engineered powdered metal gusher bearing design enables grease to flow through the bearing to the stud for reduced friction and enhanced strength and stability, Premium quality MolyPro™ NLGI Grade 2 Molybdenum Grease (MoS2) to minimize wear and reduce friction providing longer lasting performance, Premium cover plate design allows for tighter tolerances vs traditional cover plate designs, providing a more durable and extended life for the link kit, Exclusive multi-lip seals are made with ProSeal™ Nitrile Rubber (NBR) which can successfully function at high delta of temperatures while retaining its flexibility and sealing performance, TQ steel composition results in a stronger component. Our full-ball metal stud provides 36 degrees of smooth, consistent, rotational movement resulting in more responsive steering, Inner rings are made of Case-Hardened Steel for improved resistance to surface wear and contact fatigue, Kit Includes: 2x Front Kugel Wheel Bearing (Both Side) + 2x Front Top Quality Suspension Stabilizer Bar Link Kit (Both Side), Kit Variations: K77-102639 K7T-100093 K7T-100937 K7T-108249 K7T-108343 KBB-100103 KBB-101330 KBB-101632 KBB-101925 KBB-102260 KBB-102611 KBB-115490 KBB-115567 KBB-115641 KBB-117642 KBB-118155 KBB-118757