Hey guys, this has always been my go to forum for all my gm related questions, and I've finally hit the dreaded wall on my latest GM endeavor.

So to begin, on the way home from a short trip with my family, about an hour to and from, my brake pedal hit the floor and was useless.

Thankfully it happened a few miles from my house. I figured right away rotted lines, and went to investigate. I found the leak, pissing brake fluid from the rear, and on further inspection found it to be my rear center brake house, right were the rear brake lines connect to. Bought the hose, went to work. Got everything disconnected, had to replace a brake line in the process and now I am stuck.

Where the hose threads into the mounted bracket on the frame (over the rear diff, near the spare tire) is completely rusted and rounded. I've scoured the internet looking for other similar cases and just can't find what I'm looking for. I've resorted to about 200 gallons of liquid wrench and vice grips at this point. The OEM replacement I bought threads in and is a 15mm fitting, and for the life of me I can't get the original to budge.

This is my daily and is absolutely soul crushing the last two days without it. And advice from a hardened veteran out there? Seriously, anything would help!

Thanks in advanced guys
-Seth

 

I went out and snapped some pictures, just so you guys could get a better understanding of what's going on
-Seth
suburbo - Album on Imgur

 

It appears that the hose does not thread into the bracket. Looks to me like the clip on the other side of the bracket is holding the hose in. Remove the brake line nut,& the clip, then the hose should come off the bracket. (It may be rusted in tight) That brake line looks like it's toast, I'd think about changing it too. Good Luck

 

With that much rust I would replace the lines all the way to the wheels. If the rest of the lines look the same, consider replacing all of them now. Yes it is a pain, but its only a matter of time, and brake lines are cheap.

 

Ended up doing just that, one of the flares had snapped off on the driver side line, causing the original leak. Used copper lines for a little more play with the bending. Good call.

-Seth

 

Don't know if using copper lines was a good decision. Seeing that copper is softer than steel,will it handle the pressure? Also where copper lines contact steel you might have a corrosion problem. Just my opinion.

 

Using copper is an all around bad idea. Not strong enough by a long shot, and won't pass inspection if you still have those. Hate to say it, but, you really should go back and do it the right way......

 

he probably means cupric/nickel. Pure copper tubing is not sold for use in brake systems.

 

The biggest problem with copper is that it will work hard and become brittle. Once that happens, any kind of mild shock can fracture the line.

 

I don't know....... My father in law is probably not the only hillbilly engineer who sees copper tubing and a plumbers flair tool and thinks, brake lines.
Thankfully, he was such a mechanic, the car didn't last too long anyway.......