Alright so we have a 1987 ranger. Trying to replace the radiator but I cannot get these two lines to budge and I cannot find any helpful info online.

 

You need to hold the long nut and then turn the smaller nut, that will loosen and then spin on the tube so it comes off, then you can remove the long nut if needed

You should use tube wrenches so you get a better grip and don't round off the nuts
They are standard threads not reversed

tube wrench is like a box end with a slot in it so you can slip it on to nuts like these, also called flare nut wrench

example here: https://www.harborfreight.com/5-pc-s...set-68865.html