was it wheel hop dsc? if so check your subframe bushings with a prybar see how much play there is.
also see if your tensio rods are good and tight. i had left mine loose so i heard a clunk everytimes i applied the brakes. other than that also check your exhaust see if the cat bracket and all the hangers are good could be your exhaust hitting your trans your undercarraige or diff.
i would check that first a nice hanger would be the easiest (ghettoest) fix <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/tounge.gif" border="0" valign="absmiddle" alt='
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