Thanks Mike for the help.
I just did a quick Youtube search and found this:
HQ Holden Rebuild 5: Tip for brake line fittings - YouTube
I did exactly what this guy did with a Vice Grip to loosen it, but I should use CNC next time.
Thanks for the tip. I guess my car's brake lines are old enough where it's impossible to use a wrench to loosen.
I bought new Brake line Tubes with fittings, hopefully i won't have to buy new SS lines (Hose) due to a ruined thread in the junction box. The lines are coming in Thursday, I also bought 2 more bottles of brake fluid.
By looking at it, the thread seem to be fine. I think the fittings are really soft which is why they strip easily. I just hope they're softer than the Junction box material. (I dunno if that's the case b/c usually it's the other way around with screws).