I have a 99 f-150 with stock fender flares. They are white on a white truck and i want to take them off and paint them black. I see the four screws around the wheel well and the plastic fasteners on each end. After i remove the screws and fasteners, i still cant get them off. There is some kind of clip underneath. I was able to undo one of the clips at the end but i am afraid that once i get it off i wont be able to get it back on. Anybody have any advice?