OK - I need some sage advice. I'm about to replace my original rear brake hose. This means removing the splice block held in by the axle vent hose fitting atop the axle. It won't budge with penetrating oil breaker bar and 6-point 9/16 or even 14 MM sockets, acting like the nut will round out. For those who've been there how did you do it?? Much fire (hard to heat it with the brake block in the way)?? Mongo vice-grips?? Or just say the h*ll with it since the only reason to remove the vent is to get the danged brake block out!! Stack the new on on the vent hose and tie the hard lines for the brakes in?? Any help appreciated!!