Problem Solver patented cover plate design allows for tighter tolerances vs traditional cover plate designs, providing a more durable and extended life part. Exclusive cover plate protects against contaminants leaking into the bearing surface. MOOG engineered steel composition results in a stronger component. Patent pending Sunoloy coated metal bearings provide smooth stud swing technicians and drivers prefer. Greaseable socket design allows new lubricant to flush contaminants from the assembly, reducing corrosion and wear.