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The cover plates were removed from the pin at the high end of the jack screw. A grease nipple was installed in each cover plate and a gasket placed between the cover plate and lug. The bolts were replaced with 3/8 UNC X 1 inch bolts made of stainless steel. The screw holes needed cleaning with a tap and RP7. Grease was pumped in to the grease nipple to fill the cavity near the ends of the pin.