Popping Sound on Front Axle/Wheel

I appreciate the add to the forum. I have gleaned countless information before ever joining. I am far from a mechanic, but this site has gotten me through several minor repairs and maintenance items.

I recently purchased a 2001 Honda Rubicon (Full-time 4×4). After a weekend ride in the mountains, I returned and noticed a popping/grinding sound in the front. I have isolated it to the front right somewhere between lower axle (outside end) and wheel. Putting it in neutral and rolling straight back and forth can produce the sound as well.

How should I begin to assess the cause further? I was assuming it was the CV joint and about to order/replace, but I thought I would get some advise before spending money.

Thanks!