Now that you put the moly paste on, tear it down, get that stuff out and use Bel Ray Waterproof grease. Honda's moly paste isn't waterproof and wears away leaving the metal exposed. Your old unit wore out because of the paste. Guard Dog grease is available online and is also a great grease. My drive unit and has 111K miles. (All Bel Ray) The last tire change showed no wear at all. I only clean and regrease at tire changes (15-18K miles).
I have over 75000 km (might be over 80000, Gryphon's still sleeping right now and I don't want to disturb it) on mine and I've only used ProHonda 60% moly paste on those splines and mine looked way better than than Quicksilver's when I lubed it last season.