so im going to final address this it been a while now. so i was trying to adjust my camper in the back and the upper control arm bolt is loose but it will not come out and wont tighten up im guessing there is supposed to be a nut welded inside the frame? but any suggestions or any has this happend to anyone else? the only solution i thought about is to cut the frame open but i really dont wunna do that so plz help me out on this one