My 97 Deville has developed two Brake line leaks in the rear of the car. It is Leaking at the bracket that holds the Fuel and Brake lines in place. I have cut away in the lines at a clean spot under the drivers side door..

Now I cant get the Flare Nut off the Polished Aluminun Valve looking thing???
Can I buy this piece? Whats the name of this piece?

Also can I buy the piece both Lines mount to inside the left rear well? It has the SS Brake line. Then it also has the rubber hose to feed the Right Side Rear Caliper.

These Nuts are frozen and the torque need is going to break all the other lines. I am thinking of replacing all lines new. Just need to get replacemant parts.

Thanks George