Thanks, a friend and I built it after the T&T Customs Rock Runner. The majority of it is 1.25" tubing, the turn signal guards are 1". I don't remember the size steel we used for the winch area, and skid plate, but there is also some angle iron for where the winch mounts. We also used 3/8" steel for the bumper mounts. The tow hooks are from an '05 Ford Dually. I have also added light tabs and shortened up my turn signal guards to fit Bushwackers.
Here is my build up of it. http://www.jeepforum.com/forum/showthread.php?t=330323