Features Powdered Metal Gusher Bearing Design Enables Grease To Flow Through The Bearing To The Stud For Reduced Friction And Enhanced Strength And Stability Patent Pending Sunoloy Coated Metal Bearings Provide Smooth Stud Swing Technicians And Drivers Prefer Patented Cover Plate Design Allows For Tighter Tolerances Versus Traditional Cover Plate Designs, Providing A More Durable And Extended Life Part Exclusive Cover Plate Protects Against Contaminants Leaking Into The Bearing Surface Greasable Socket Design Allows New Lubricant To Flush Contaminants From The Assembly, Reducing Corrosion And Wear Type - Male Finish - natural Material - Steel Greasable - YesApplication Make - Chevrolet, GMC, Pontiac, Oldsmobile, Buick, Cadillac Year - 1973 to 1981 - SKU: KSAO82011