... This style connecter will still allow the brake and fuel lines to be installed as one piece. The connectors that weld to the floor pan won't allow that....
I used the US Cartool weld-to-the-floor connectors, and was able to route the one piece brake and fuel lines through them without an issue, as they have sections where there is a gap between the connector channel and the floor to allow room for them to pass through between the two parts.