[steve v]

Rusty brake lines are pretty common on these trucks. My '04 2500HD had a line go right next to the fuel tank a few years back, rusted thru. Looking at the rest of the lines going to the abs unit under the drivers floor area was an awakening also....everyone of those lines look like they're ready to go next. Was a little surprised they rusted this bad seeing as we live in NC with very minimal exposure to winter weather/salt brine on the roads here.

I bought a complete pre-bent steel brake line kit from GM that had every line in it for right about $100. Seems like they were a plastic coated steel line so hopefully they'll last a little longer. I was able to replace the line in between the tank & frame w/o removing the tank. Good luck with your repair!

[77 Canamman]

Originally Posted by steve v

Rusty brake lines are pretty common on these trucks. My '04 2500HD had a line go right next to the fuel tank a few years back, rusted thru. Looking at the rest of the lines going to the abs unit under the drivers floor area was an awakening also....everyone of those lines look like they're ready to go next. Was a little surprised they rusted this bad seeing as we live in NC with very minimal exposure to winter weather/salt brine on the roads here.

I bought a complete pre-bent steel brake line kit from GM that had every line in it for right about $100. Seems like they were a plastic coated steel line so hopefully they'll last a little longer. I was able to replace the line in between the tank & frame w/o removing the tank. Good luck with your repair!

Stainless steel and vinyl coated prebent kits are readily available. I've done so many of these I can do them in my sleep. Fortunately, the 2007-up trucks all have the vinyl coated lines.

[Chief of the 60's]

Originally Posted by 77 Canamman

Stainless steel and vinyl coated prebent kits are readily available. I've done so many of these I can do them in my sleep. Fortunately, the 2007-up trucks all have the vinyl coated lines.

They rot too. GM needs to recall that junk. But then, it took them awhile to recall cars that were killing people, brake lines are not important.