I have a '95 S500 with 55,000 miles that I believe has a rear suspension problem.

The car does not seem to take impacts from bumps well. It feels and sounds like something is loose (on both sides) when I go over bumps. My friend has a 2001 S500, and it takes the same bumps with aplomb (as does my '98 Caravan). I just had new shocks installed, so that is not the problem.

I know little about suspension systems, but could it be bushings, struts, etc.... Thanks in advance for you help!