If it's got the OEM running boards with the front mud flaps you may want to reconsider pulling them. The front mud flaps fit over the running boards, so if you remove the boards the mud flaps look ridiculous as they've got the recess built into them to receive the runners. If you pull the mud flaps and assuming they were installed by the book, you should be left with 2 or three holes left in the lower panel of your fender.