Thanks, that really helps. So the stock 2.28 is in front and the 4.70 add on is in the back.
Doesn't have to be that way, just that is just how most used to build them. I see Marlin sells their bolt-in crawl box w/either, so you if you buy one with 4.7's, then you would have 4.7's in the front case and stock 2.28's in the rear.
I have quite a few questions about the dual transfer case install, tips, and operation. This thread is getting a bit long. AS I am new to the forums, is it better to start a new post in the Transfer Case forum?
New thread might be helpful depending on what path you go once you get the parts, buying crawl box vs buying a used t-case, gears and installing them yourself, for now you are good, 2 pages isn't long.