Jack pad
Had one loose jack pad....Someone must have lifted the car with a Bottle Jack...and the center plug of the pad was pressed up into the body so you couldn't unscrew it....I had to cut the bushing and plug with a carpet knife until I cut the rim off so I could push the center plug up into the rocker panel....
Took about an hour and 4 beers....
New pad from dealer was only $ 37
now she's perfect again.