I have a question about the transfer case drain plug. The filler plug was the 10mm allen but the drain plug was 4 sided. Anybody have an idea what size? Is it just a 3/8 or 1/2 ratchet?

On a side note, did all my fluids except the transfer and the car feels great

 

It's just a rachet head. 3/8" drive IIRC, but could be 1/2".