Best I remember (and it's been quite a while), I believe there's just a couple of nuts holding them on (there's a little stud running through them). And I believe there's access through that cheap arse factory bumper.......but you might have to take the bumper off - no big deal, really. I think I first removed mine when I mounted my high-lift jack up there (which involved removing the bumper). Bumperettes and factory bumper are all gone now, so that's all from three years ago in a 50+ year old burnt-out memory.:lol: :lol: :lol: :lol:
Hope that helped somewhat.