NP208 Missing a Seal

I have a K5 Blazer 1986 350 V8 4WDQuestion:  I am trying to identify a gear in my NP208 transfer case, it's some type of black plastic, has three lobes, its definitely a seal and it has 2 holes through it for oil to keep it cool, it was right inside of the speedometer gear.  Can you help me?Answer:   Sounds like the oil pump housing… it is black and has a seal in it and sets around the white gear (oil pump gear) right below the speedometer in the NP208We will have a nice takeout your cost $15.00, give Scott a call 888-824-2012 he can help you.  You can see the other parts that we can provide for you NP208 on our site.