Control Arm (loose bolt inside the subframe)

[buvdog87]

If you are a welder, have a friend with a welder, or know a shop that is willing to do off the cuff repairs, they can cut open the subframe and weld a new nut in place. Then weld the sub-frame closed again. I had a local shop willing to do this repair for a couple bucks rather than replacing the whole sub-frame. Keep in mind, any shop that does this may have you sign a waiver so they have no liability if it fails.