Yup, 4.3 Vortex under the hood. It's just a 2in body lift, nothing special. Suspension lifts for these trucks are pretty expensive and way to high for my liking (6inch BDS lift for example).
Stock tires/rims are 31x10.5x15 with a 6in backspace, mine are 285/75-16(33x12x16) with a 5in backspace so they poke out quite a bit more then stock. BFG All-Terrain TA's came with the truck, these are Toyo Open Country MT's... I'll post a front shot so you can see how different the offset is, lol. I also have the lower flarettes removed if you can tell. As for the truck itself I love it, I've pulled more big trucks out of the mud then you can imagine. Can't touch a short wheelbase truck in the mud, I don't care how many ponies you have underneath the hood. I don't commute in it (I have a TDI for that) so I basically drive it in the city and when I go fishing...
Here is stock when I bought it.
Front shot as it sits now.