Subframe connectors for a driver/cruiser, necessary to weld to floor?
sorting out the floors on my Barracuda with the screen out, the door off and the floor cut out it's visually quite scary how little metal there is holding the car together.
I would say one main reason for fitting them is to stop or reduce the cabin folding around the occupants in a head on or rear end crash. Although i'm using box as a frame connector i'm also tying the seat mount points to the box as the floors flex quite a lot . (Felt as i knelt on the floor to weld and evidenced by cracks at the seat mount points.)
Probably find Mopar didn't add frame connectors as an upgrade because it could be said the body isn't strong enough in the first place then.