You'll either have to do a lot of trimming or run a lot of bumpstop.
I had to trim the pinch seam with 3 inches of lift when I jumped up to 37's, so even if you get a larger lift this summer expect some trimming. I also need to trim or replace the stock fenders, even with 3" of bumpstop. I get some rubbing on the rear inner fender liner.
I second the recommendation of gears and brakes. I was using the stock brakes until this weekend. I couldn't lock up the tires anymore with the stock brakes and 37s.
In Colorado, regearing is a must with big tires. The hills here are killer, especially with the 3.8l. You might be able to get by with the stock gears for a while in TX, but gears will make your driving experience nicer.