Update on My 64 Dart project

I've been thinking about cutting out the spare tire well and making it sized for a Mustang gas tank.

They drop in and are supported by the flange on the tank then clamped in place. the top of the tank is then the trunk floor. In a Mustang the filler is at the rear center of the tank. One could mount it backwards and the filler would be at the front and line up with the A body fender filler hole. As a plus the center filler would stop the fuel sloshing out on hard right turns.

If you mounted it toward the axel there might be enough room to sink the battery in the floor behind it on a Dart.