Hello all. I own a second gen Ram but am swapping in a 3rd gen ram 9.25 axle. My question is on the brake lines. How do you get this fitting apart? Also, I want to replace the rear brake lines. How do you put this fitting on a new brake line? Hopefully I don't need to buy the expensive pre bent stuff.

 

I believe you are asking about connection where hard lines meets flexible line. If so, you should use a line wrench to back the nut off. I believe it's a 15mm, but use an open end wrench to gauge size. Don't even try it with the open end of a box wrench, guarantee you will round the nut.
You'll want to limit how many brake line connections you open. Are you able to disconnect the line at the banjo bolt and keep brake line intact?

 

well the brake lines did not come off as needed. When removing the fitting the brake lines spun with it. Pretty much ruined them. Also could get that fitting off that I asked about. I just bought new soft lines and some brake lines and fittings to replace all of them. Don't want to screw with the rusty crap.