Not to burst your bubble, but it will be a lot less headache just to buy a 4x4. Also, personally if I had a 2wd that I wanted to make 4x4 I would skip the stock suspension part and just put a solid axle up front.
But to answer your questions, the transfer case will not bolt to your current transmission unless you change out the tail section as well. You will also need new driveshafts as well, along with pretty much every front suspension part.
But to answer your questions, the transfer case will not bolt to your current transmission unless you change out the tail section as well. You will also need new driveshafts as well, along with pretty much every front suspension part.