67 Dart Build Triangulated 4 link & Mini Tub

It's hard to tell from the pic, but does the bar hit the filler tube, or just the plate? In the pics it looks like the plate, in which case, you could just notch it a little. If it's the bar, you might need to modify the filler tube, depending on how much it interferes. Are you using a kit for the cage, or is it all home fabbed?