How does one properly remove existing hose end fittings from AN lines in order to put on new full-flow fittings? Do I have to cut the lines, or is there a secret to getting the hose end off the line??

This is for an oil cooler setup. Bought it used which is why I need to change the fittings.

Thanks

 

figured it out. For anyone who's interested (likely not many, lol), you do have to cut the line end and use fresh line for it to remain tight and seal.