Torsen T2R Installation Difficulty Level?

I'm just about ready to buy a Torsen T2R. So the question is can I put this sucker in myself? I have put in everything in my .sig, but I'm not sure if replacing the diff is going to require me to reset my gears or is it kind of a plug-and-play situation?

I would pass on replacing my rear gears myself, for example.

Thanks.