The crash bars are removable for this reason.
If you have the standard bumper you may have to loosen the bumper in order to slide the crash bar out.
If you have the Modular bumper you can take off the end of the bumper, unbolt the front crash bar and it will slide right out.
Other folks have successfully ran 315/70-17 tires on the stock wheels and had hardly any rubbing issues, but they MUST be removed for any tire over 33's ESPECIALLY on a zero offset wheel.
Day 1 res first 3 hours, Feb 6th order; May 25th? scheduled for build, July 15th Build date, Dirt Mountain 2.5 months, delivered into my loving hands Oct. 8th