[scubadiver1955]

I am at my wits end!!!
I am replacing my radiator on my 1998 mustang.
I have everything disconneted, with the exception of the transmission lines.
There are no release clips, it looks like 2 fittings, no gaps for tools around the steel lines.
In frustration I cut the radiator fitting off, since I am completely replacing the unit.
The fitting on the steel line, has a long smooth nose.
Is the age of this fitting/rust is what is preventiing me from taking them apart
Or some special tool to remove?. PB blasted no help.
Can someone shed some light on my problem?

 

[Hockeyman48]

With the lines cut off,try some heat applied to the nut on the line itself.