Rear overline fenders


Jeep Newb
Just got my boxes with the overline fenders and rock rails. I have a question on the rear fenders. The directions say to remove the inner fender liner, which I understand and don't have a problem with, nut it never says to reinstall them, and how to get the two plastic anchors at the top that go through the tub back in, when there are no holes anymore.
If any body has any ideas, would appreciate it. Thank in advance.