The 47-53 hooks have a 3d twist shape in them
They cannot lay flat
It may not be showing in my photos but mine are a 3D shape. The issue for me was that they were simply mislabeled L and R. It seems improbable but it’s true. I swapped them and the fit now makes sense. I think we are now just shamelessly posting close up pics of our tailgate paint jobs. ðŸ˜ðŸ˜