They put front flaps on the rear wheels off the assembly line, but could you put the rear flaps on? It does not make sense. But for a few dollars I was able to fix this situation. Of course I was suspicious of drilling into my brand new truck. So here's what I did. I screwed in the screws, removed them, took a small brush and black Rust-Oleum and covered the inside of the holes. RTV screws coated and screwed back in. Then I painted the back of the holes and screws with more Rust-Oleum. Looks good and keeps rocks out of backdoors.