2008 silverado brake line size

[StarshipCoder2000]

trying to sort out the brake line size for my 2008 silverado. looks like it's a 1/4 line but the flare nuts aren't 1/2-20 like i expected. everything i find online only covers pre-2007 models. the old line rusted out and split so gotta replace it. anyone know the right size for this?

 

[JohnConstantine]

many people say that gm uses oversized nuts so theres your answer to that but since its the brakes i say take ti to a mechanic, just in case

 

[greasemonkey80]

many people say that gm uses oversized nuts so theres your answer to that but since its the brakes i say take ti to a mechanic, just in case

yup, that's gm for you.

I think you should be good to go with 1/4" tubing with 1/2"-20 threaded flare nuts, but if it doesn't look like it fits, then maybe they were replaced by someone else before? Someone could've improvised a bit

 

[5ierraHauler]

That sounds accurate. It's common to use flare nuts with those specs, but sometimes past repairs can lead to some unusual configurations