I finally had a chance to use my AWD this weekend and after I was done riding, I noticed that my front left hub was leaking. The screw where you add fluid was tight. What else should I check?

 

Leaking on the inside or outside of the wheel? There are only 3 seals on the hub. The o-ring on the cap, the hub seal on the back of the hub (common leaking seal) and the strut housing seal. That one is a little more difficult to replace though

 

On the outside of the wheel.