Diagnosing a suspension issue

[ReDeeMeR]

Hey All,

First time poster.

My vehicle is a '97 986 Boxster which has been running great for years but is recently presenting a handling issue that I am trying to diagnose.

When I make a subtle turn (such as lane change) at highway speeds, the vehicle experiences excessive body roll/shifting of weight in the rear upon straightening back out.

I don't really notice this at city speeds. Driving, cornering and straight line travel is great and as expected.

Since I am not experiencing a calamity of issues, I suspecting there is an individual component that is worn out or failing.

Can someone point me towards a component to investigate? I tried to verify if I have any issues with wheel bearings but did not notice any play in the rear wheels when off the ground nor do I hear any unusually noises while driving.

Thanks.