Subframe connectors needed or not?

Kern Dog said
You could weld in 2 x 3 .120 wall connectors held flush with the bottoms of the front and rear rails. This will leave a gap above them and not touch the floor pan.

View attachment 1715780449

View attachment 1715780450

This will allow room for the parking brake cable and fuel lines too.

I do like the simplicity there, but I would much prefer to involve attaching them to the floor pans. It would make for a much stronger structure, IMO.