Duster rear upper shock mounting hole cracked.

michiganpat said
when we bought my car in '91 with 50k miles it had either air shocks or those coil over shocks on it (can't remember which), but both body shock mounts were ripped out of the floorpan....the mounts were only designed for transient damping loads, and not supporting vehicle weight.

And on that note for the OP, if one of the mounts is cracked and you need to weld and plate it then it’s probably worth doing both of them while you have it all apart and prepped to weld.