Replaced most of outer keel in A77, Blue Goose. It was necessary to plane off 10 to 12 mm to get to solid mahogany.
Trevor mentions three types of grease fittings in the Repair Manual for the Keel Assembly and Mounting Structure published in 2010 with supplemental info. from Murray, Dominic, & John. The attached photo is the type in Blue Goose A77, looks like