coming home last night I stepped on the brake pretty hard and then the pedal went soft.

turns out the hard brake line going to the rear above the rear axle is now leaking. The rupture appears to be in the hard line just rear of the fuel tank about 4 inches before it threads into the flex line.

the brake line runs inside the frame all the way to the front of the truck as one line and is tucked in behind the fuel tank.. How do you replace this brake line? Do you need to remove the fuel tank to do this? does the replacement line come as a two piece or is it still a one piece line?

Help...

 

What I did was cut the line as far up toward the engine bay at a point where it was easy to access and the material was good.

Bought the proper length of line and connected it there after running it along the frame first and making the necessary bends.

I left the old line in place and just wire tied it as I went.

Keep in mind if your using just a piece of stock without pre flared fittings you will need a double flaring tool to make it right. It's pretty simple and straight forward.

Denny

 

its strange... the brake line does not look rusted where it ruptured... The connection all the way at the front near the engine is really rusted.

Do I need to drop the fuel tank? what about just unbolting it and moving it over a few inches for some working room?

 

My brake line ruptured near the front. I went to NAPA and picked up a roll of metal brake line and replaced it all.

 

What a PITA job...

There was a pinhole size rupture on the backside of the line near the rear.

I got by with only unbolting the front strap on the fuel tank. Had to cut the old line to get it out.

use the following sized new line to replace: 1 x 72", 1 x 60", and 1 x 40". in that order from back to front. The front one could have been shorter like maybe a 30". And you need the unions to hook them together. I replaced the union all the way at the front as well cuz it was uber rusty...

 

Now You can pat Yourself on the back with a refreshment of choice while you lick Your wounds,at least that's what I do.