here's the skinny
jack it up take the wheels off, use a cutting device of some sort to cut the plastic around the pinch weld into like a flap, hold the flap up, pound the pinch down, cut off some of the excess plastic, the part that used to protrude, with exception of the flat part, press teh plastic back down, heat the strips you cut with a heat gun and basically glue the flap back down
kinda straight forward
you're basically using the excess plastic that used to make the protrusion, and usin that to clue it back down flat with the rest of the liner
know what i mean?
and it doesn't even have to be done in that fashion, whatever you come up with to help seal the liner back up that you think is suitable will work, i haven't done mine yet, my 235-70's rub because my stock suspension is so worn out

so I should pound it before it rubs a hole in the liner but I thought of taking some moldable plastic like whats used for patchin johnboats and what not and basically mashin it over the spot and using liquid nails or something to seal the plastic patch to the liner
it's basically whatever works