This is why I'm not allowed to have nice things...
One trip out to the trails and these aging axles took a shit... BOTH of them, lol. I think with having a ~3" lift up front it's time I get some of those sweet CVJ axles I keep hearing so much about. Gave the tires a jiggle and the bearings both seem good. The drivers side inner CV though... well, that rumbling I was hearing the other day is oddly similar to what I could hear when spinning the tire today. Fingers crossed new axles do the trick!