Hi,
I have attached a pic. There are only a few steel cooling lines and they are part of the heating system. I highlighted them in the attached pic. Is that what you are referring to? They will not attach to the radiator, but rather to the water pump/engine.
If the steel lines are coming from the radiator, confirm it is coolant. There are steel transmission cooling lines that run to the rad as well, but the fluid would be redish in color.
Let me know.
Joe
Image (Click to make bigger)
Tuesday, October 13th, 2020 AT 5:38 PM