Gas tank support bracket

Dana67Dart said
67 dart strap mounts left to right with a single strap. The strap hooks into the rear frame rails.

There is no brkt that is welded to the trunk floor (and why it is important to know the year and car before answering the question)

Drivers side

View attachment 1716046993

Passanger side

View attachment 1716046994

It would also be helpful to understand the OP's intensions. I did assume some here. I am in the middle of this modification, mostly for exhaust clearance with a mini tub. Plus, I think it is a better way to retain the tank as did Chrysler.