Hi all - First time on this forum, looks like lots of good stuff here!

I have a 1990 Caribbean 20' open bow, 454 BBC, and Berkeley 12GJ. Looking for what needs to be done regarding maintenance for the 12JG. The bowl has been changed over to a zerk fitting on one side, with a set screw on the other side. I was told this grease zerk fitting is to replace using oil for the bearings, which it now uses grease pumped in, is this correct? Inside the boat there is a zerk fitting on the body, which I also grease, what bearing is this greasing? The u-joints also require greasing from time to time, correct? What about the packing gland adjustment? Thanks!