Yep they were a pita... I took out hardware on the front and back mud flaps/guards and secured the bottoms of the liners but had to cut the bottom lip off of them to sit flush against the body when sandwiched to the body. I also used a ceramic coating spray on the liners when I took them out of the box and now spray what little can adhere to them with a hose and they look brand new w/ no effort.
I am happy with purchase but they are not plug and play if you want them done right.