Trying to create a device for the CV that will totally stop leaks is impossible, it doesn't matter whats around the tank, a 70mph rear impact will split a flat piece of sheet metal. (and don't forget inner tank pressure suddenly needing an escape route from the tank). It's a tough gamble to create something to stop a leak from impact, it totally depends on angle of impact, either way, the tank is gunna rupture, it's a matter of trunk/interior sealing so its harder for the fuel to consume the interior. But then again the CV weights enough lol.......I don't feel like creating a flame thread or debate thread but I hate this whole public "sue Ford for physics" I've yet to see a rwd 4-door sedan NOT leak fuel at 60-70mph+ rear impact....
stay safe out there
stay safe out there