[gto19]

So today I was gonna remove the original master cylinder from my 67 gto but one of the flare nuts on the brake line won’t break loose with my flare nut 9/16 wrench. I tried a harbor fright junker wrench and a craftsman and I could not break it loose . I soaked it a few hours with kroil and still nothing.you guys Have Any tips . I bet the line has never been removed and there’s no rust . The front line broke loose and the two nuts holding it to the fire wall .

Thanks guys