Auto Parts: Weak strut?, rear shocks, actuation

Question
I have 2002 Camry with 130k miles. Recently I feel stones stick on left rear tire when drive 10MPH locally. But the tire is actually clean. The feeling disappears when drive 30MPH or on highway. I am wondering if it is due to weak/failed strut. I replaced two front ones on may 2007 at 67k miles. I don't want to replace the rear ones at this point because they are very costly and the rear ones are not very important I believe. Please give me some advice. Thank you.

Yan

Answer
Yan,

You can test your struts easily by pushing down on the corner of the vehicle.  If it bounces, your shocks/struts need replacement.  If they react properly, they should spring back ONCE and stop.  Another way is to remove the strut and inspect the strut for proper actuation.  If you've got 130k miles on your vehicle and haven't changed them, I would.  The rear shocks/struts are just as important in keeping you on the road as the fronts.