do you mean traction bars? The front end has a "track bar" that keeps the front end centered.
For tractions bars, glacier Diesel power makes a good set. I have the superlift ones, and would recommend the GDP bars instead. The superlift ones didnt' seem to make that much difference on my rig. I know john barber (jbarker) on here has some traction bars he sells too. I definitely recommend talking to him. He is always ready and willing to help. He, along with Jason at Dieselnut.com, are my go to guys.