One of my front liners fell off last year but luckily it wasn't until I went over a speed bump on our street so I was able to retrieve it. However the front edge of it had obviously been rubbing on the road and had worn down a bit. Looking at it today I think I can reattach it to the bottom of the bumper but how is the liner attached to the inner arch? I don't want to re fit it for it to just blow off again!