Domestic refrigerator holding clips

[Wheelhouse]

Lately I notice my Dometic refer was leaning outward at the top???
It looks like the clips are bent at this point. I tried tightening the screws but a gap stop is present. I drilled a hole in the top trim and pushed the unit in to attach a long screw and found no backing?
My next move is to drill a couple of holes on both side trim and secure it at the studs on both sides. Has anyone tried this???
Has anyone had this problem?
See picture.