Moog K9022 Ball Joint Problem Solver powdered metal gusher bearing design enables grease to flow through the bearing to the stud for reduced friction and enhanced strength and stability. Greaseable socket design allows new lubricant to flush contaminants from the assembly, reducing corrosion and wear Loose or worn chassis parts can lead to premature tire wear Fits Nissan 1978 - 1996 vehicles Designed as stock replacement Improves chassis performance and durability Easy to install