Moog K5143 Idler Arm 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. Moog engineered steel composition results in a stronger component 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 1964 - 1972 GM vehicles Greaseable for smoother steering Made from quality materials for durability Direct replacement parts for steering system Designed as original equipment replacement for stock vehicles