Moog ES800874 Tie Rod Ends, 1 Pack Loose or worn chassis parts can lead to premature tire wear Exclusive cover plate protects against contaminants leaking into the bearing surface Grease able socket design allows new lubricant to flush contaminants from the assembly; reducing corrosion and wear Patent pending Sinology coated metal bearings provide smooth stud swing technicians and drivers prefer Patented cover plate design allows for tighter tolerances vs traditional designs for a more durable part