Disc brake hoses don't fit frame brackets. Grind which one?

Thanks, I think I'll do that (my concern was weakening the end and a potential stress crack when the flare nut is tightened and under pressure with heavy braking)...

Also I will carefully inspect the bracket to make sure it's not twisted. I looked at many pics online from different suppliers of '73-'76 A-body hoses, and they all have round ends. I can't find a really good pic of a '72-down drum brake hose; wonder if it has a flat side?

I just re-read Richard Ehrenberg's article on front disc conversions (and did other searching) and nowhere is this mentioned as a fit problem.

(I didn't have any existing hoses to compare to, I got the car as a rolling shell and it had single-piston '73 calipers already installed, with the old hoses cut off at the banjo-bolt ends).