So while I was under the truck checking out hoses for a evap leak I happened to notice my transfer case was leaking. I was hoping someone could tell me possibly what seal or something I need to replace. I wasn't sure if its a input shaft seal issue or a output shaft or etc. Never dealt with it before and wanna order the correct part(s). The leak is on the driver side, and the rest of the wet is from drip down. Much thanks in advance. Oh yeah it's the NV233 TC