Wyd 66 Dart trans tunnel.
Ok, here’s the hump I have. After a closer look, there is a rusty spot on each side where the tunnel turns to the flat of the floor pan, I’m not sure if when I cut it out a little more of the flat is going to deteriorate further. I thought it was more solid in this area. If you want me to cut it out and you just pay the shipping, you can have it for free. I would of course send pics of it cut out so you can see it up close!