quick subframe connectors question

I welded in my 2x3 box steel frame connectors with my interior in. No issues. Mine connect the front subframe by the torsion bar mounts to the rear subame
by the front leaf spring mount and they do not contact the floor. This is a 72 B-body but I believe there is no difference with an A-body. I used a piece of scrap to protect any fuel/brake lines. Made a huge difference in handling.