With limited information, it's hard to determine what your end game is..
Is it 2WD or 4WD?
Given by the tire dimensions you currently have, I'm going to guess it's 2WD maybe?.... if so, keep i mind that keeping your truck to the original size would help your vehicle maintain it's optimum performance and less stress on the transmission components, driveline, and rear end planetary, spider, pinnion gears.
People tend to forget that when you go to larger tires and wheels you have more rotational mass which also robs power and performance.
What are you trying to achieve? More for aesthetics or performance?