What is the fix for the bumper mounting fasteners that seem to have had better days? I was attempting to bolt my bumper back on and I felt it start to get tight and then that was it. It let loose after that and I was no where near putting torque to the bolt. This was the bolts that hold the bumper brackets to the frame. Something tells me this is not an easy fix. Both bolt fasteners on the passenger side are this way and I was afraid to try the driver’s side. Anyone have experience fixing this issue?