I understand the feeling of slipping a wrench rounding off a hex.....I would try large Vice Grips at that point to hold the bottom steel line hex. The Break line Hex is larger and an open end may allow you to apply enough torque to break the fitting loose. Otherwise another Large Vice Grip. I have never tried heat on a brake line but heat would prolly not bother as you are discarding the rubber line anyway
Quote:
Originally Posted by Dmod81
When mine were frozen I used pb blaster CRC freeze off over the course of a couple of days (with tapping for vibration). I also used heat very carefully. Mine ended up rounding off too so I used vise grips on a couple.
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We are thinking exactly alike as I was posting at the same time 