Here are the Husky mud dog flaps installed. 5 screws on the back flaps, 2 used OEM spots and 3 were drilled with the provided hardware self tapping screws into the plastic molding. 4 screws on the front, 2 OEM and 2 using the self tapping into plastic. I did not cut the front pair, even though I saw some people do cut them, the rubber is tough but easily contour and fasten into place without worry. I can always cut them later if I see something wrong. I have them 6-inches off the ground, which is good. I used a dewalt right angle drill adapter to get the installation done without removing wheels. You need this adapter or a 90* drill to install the back panels without a wheel removal. In all it took me 2 beers and a vodka soda and I didn't have to move too fast. I like the way they look, I am confident these will perform, and I'm glad I went with straight black and not the stainless panel style, I like to just keep my chrome simple with just grill, wheels, bumper. I am debadging the truck as well, except for the Ram on the tailgate.