Like every one said depends on the size of the dent and where it is depends on how to get it out. I do paintless dent repair, been doing it since 1988 and loosing my touch because I'm getting old. If you can get behind the dent and use leverage with a bar and if your careful you can slowly get the dent out or close enough for filler. But that depends on if there is bondo there from before or the rear 1/4 is touching the other 1/4?????? pictures help
