it goes like this dude, 1st= Forward shift Transmission then 2nd= Your regular (in your case) Forward shift Transfer case then 3rd = Your "doubler adapter" (sold by marlin and such) then 4th= Your "crawl box" (which is always a top shift Transfer case with only the low range gear section removed and installed, sometimes people will put the 4.7:1 gear set into this section and create what is called a "dual ultimate" giving you the lowest transfer case gear selections compared to stock 2.28:1)
Rock on man
and keep wheeling!! hope i was a help. if not do a quick search up in top left, massive amounts of info on this! Start a build thread, looks like you got a sweet ride holmes!