There is an opposing block inside the boom with a quality unit that you can replace when you remove the end of the boom. The blocks at the bottom of the mast can be replaced, they have a nut underneath you have to jam to turn the unit. You can also use a better grade of cordage for the reef lines.
The only other advice is install a new halyard, lube the mast track again and lift the boom before hauling the last of the sail up. You can also add a sail track, owners always give thumbs up to that.