1990silverlx5.0

I changed the front struts last week in my 90 5.0 and noticed the rubber bushing on top of the left one is bad, I was in a hurry to get to work so i did not have time to replace it. if I am going around a sharp right hand turn I hear (and feel in the floorboard, slightly) a "popping" sound. Could this be from the bad bushing? Any help anyone could dispense would be greatly appreciated. Also where can I find a set of urithane replacements for these?
Thanks,
Andy [sm=usa.gif]

99saleen351r

Hmmm let me think.......(Stupid look on my face)........YES