So we had some of the new copper/nickel brake line we used on an old ford lot truck for fuel lines. Needless to say it works great to replace the crappy plastic hoses. Just flare the end if you want or stick it up far and make sure the clamp is tight. You can reuse the rubber parts of the hose and then squeeze it back into place. Then you are fine. Looks pretty good.

1/4" Brake Line, nuts and fittings

 

Those are 2 really soft metals, how can they be used as brake line, especially with the amount of flex that is requires.
Seems like the newer lines are more stainless steel and teflon braided for a stronger safer brake system.

 

stuff works great. Trust me its DOT approved. Napa sells it and won't sell it if it wasn't. Trust me on that.

 

Copper.org: Applications: Automotive - Copper-Nickel Automotive Vehicle Brake Tubing

 

okay neat little pieces of information. Question for you. lets say a medium 2 inch lift with 265/75/16 tires. off in the woods and you begin to max out the articulation. How are these lines going to flex. flex back. repeatedly over the course of an afternoon. I do not know, do you? have you tired or know someone who has. That is a big criteria for alot of us when re-doing the lines and adding a few extra inches in length. The need to be extremely flexiable. let me know what you know and think.

 

They are talking about the hard lines. They should be secured to something, and not flex. The rubber or braided flex lines almost always are attached to bracket at the fittings to keep the hard lines from flexing too.

 

Ok Jafir...I had hoped that was what they were talking about but they do mention replacing the plastic lines... maybe I should take another look but I do not think I have any Plastic lines on my brake system but I love to be wrong it allows me to learn.

 

Yeah. I have no idea about the plastic lines.... the only one I know if is the booster vacuum. All the others are rubber or steel. The links he shows are certainly for hard lines.

 

Reread the OP.
Plastic fuel lines on an Ford truck.
On my F-250 you'd need some flex line between the frame mounted rigid lines and the tank since they need to flex some if you're removing the tank without removing the bed. Also some flex between the line and the engine.

 

Always thinking logically. Lol. Thanks... makes more sense.