Hi mchico. for what its worth, i have a 2016 with the ready lift 3.5 kit and i run 37x12.50r20.
i had to trim maybe an inch from the plastic wheel liner in the rear of the wheel well and it fits perfectly. no rubbing even over bumps. the guys at ready lift stressed the importance of using the exact size and offset as far as wheels but tires fit perfectly and i love the look of them not sticking out of the fender and throwing mud and rocks all over truck. considering that your body style sits higher naturally i would think that clearance will not be an issue. hope this helps you out somewhat.