2001 Z71 Front Diff Leaking

I looked under my truck the other day and found my differential was leaking. Is this a common problem? Can it be fixed easily? Any help would be appreciated. Thank you.

I removed the skid plate to pinpoint where the leak was coming from. I found 1 drop under each axle shaft right before the cv boot. Now I'm not sure if that is where the leak is coming from but are there any seals there that can be replaced?