I have two friends up here who just finished their T-swapped Nissans: one has an Xterra with the Titan diff and 4.56's, the other a Frontier with the diff and 4.56's as well but she also added the ARB's front and rear. Makes me wish I would've known about that before I ended up with what I've got, really jealous of the t-swap setups, but I'll be building a D44/D60 combo to keep up with them again over the next year.
I haven't shown my vehicle in quite awhile in this thread. In process of wiring up a few of the LED light bars on the roof (twin 6" to the sides and a 20" forward), but otherwise she's as seen here. I didn't intend to wheel a Kia when I bought it, but it's served me well with 4.666 gears, LSD and a fully boxed frame. Has about 3.5" lift on the front IFS and the CV's haven't complained (well over a year on that setup), and as mentioned I'm building a set of real axles for it.