I have seen where the caged nuts inside the crossmember have been loose and they wallowed out the bolt holes. They don't spin but will move side to side. Check to see if the bolt holes in the crossmember are oblonged, they should be round

"Follow me the wise man said, but he walked behind"


'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion.
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.