I'm changin the fluid in the transfer case and on the last turn to get the drain plug out the spring and cup deal flew into my drain pan can someone tell me what order to reinstall these please lol I feel like a rookie now

 

Ok its the lil plug under the black protector plate not the drain plug shoulda had my drop light out instead of the flash light can someone tell me what order the cup spring and plug go back in please

 

Got it cleaned up and realized tha cup is like a detent for the shift mechanism

 

The cup should go in first, then spring, then cap. Do you have a manual shift (NP231) or an electric shift (NP233) transfer case?