[s-cars] Anyone replace hard brakeline?

[jimk at spotgraphicsinc.com]

Hello,
When installing the BigBrakes and the braided hoses last week, I noted
that the front left rigid brakeline (ABS computer to left front) has a
nut that was starting to chunk off (as in a small piece of it is
missing).  I carefully tightened it and it is not leaking and works
fine, but was curious if anyone had ever replaced one of these?  I doubt
it's as easy as taking the cover off the ABS unit, removing the line and
dropping in a new one (Couldn't be that easy, could it?).
Thanks,
Jim K.