Professional Grade One-piece forged for strength Two-piece cylindrical wedge provides increased fatigue/wear resistance No spring, no end play Cold formed, heat-treated stud for superior strength ad durability Full ball design delivers ample wear surface Fused polyurethane dust boot reduces the chance of cracking, splitting, dry rot, and corrosion Introduction to Raybestos Ball Joints Closeout Inventory Warranty Information Wholesaler Closeout items have a 30 day warranty (but still are covered by our Return Policy). RAYBESTOS Regular Inventory Warranty Information RAYBESTOS CHASSIS Professional Grade -24 months/24,000miles. Service Grade - 12 months / 12,000 miles Warranty Details