Measure a point on the subframe near the bushing mount, to a point on the car body, and compare Left and right sides.
If they are the same, then check the springs - one could have jumped off its seat a bit.

DG

That might have happen. I can hear a slight klunk in the back. When I’m at it, I will change the springs.

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1979 Black on Black, 300CD (sold), 1990 Black 300SE, Silver 1989 Volvo 780, 1988 300CE (vanished by the hands of a girlfriend), 1992 300CE (Rescue).