Hi Girldriver, The "flare" is the bell shape on the end of the line that hold the little nut dealios from slipping off the end. Since we are dealing with the most important safety item in your truck and the "flare" is a double (which makes it more difficult), I would like to suggest that you get it done professionally. Measure the line, cut a little longer than necessary, and sweet talk a local brake shop into doing it for you-- it can't cost very much and the peace of mind is worth it.
Sounds like you are learning fast and having fun-- that is great and everybody gets some help sometime so don't worry if you can't do 100% of the work.
Take care &have fun.
