These are from a 2015-16 F150 - Had to remove all but one mounting tab. Then used body panel adhesive to glue them to the back of the cover and used the leftover tab for a bolt. Cut out the opening with a Dremel tool and used car door edge guard, universal fit black rubber U shaped to go around...
I'm retired from an electrical generating power station where I worked for 30 years. There I was a mechanical maintenance supervisor for the last 11 years. I recently picked up a used Maverick - so far its been great - next up a few mods.