[djd99]

Most likely you have 1 of 2 things going on here, First I would check both your u-joints witch are located at each end of your driveshaft, what you do is rotate your driveshaft back and forth and check for slop, this could very well be your clunk if they are sloppy. Also there is a possibility your sunshell gear in your tranny is going out witch is worst case scenario. This was my problem at 80,000 miles, I would here a clunk whenever I would make a left or right turn or whenever I would take my foot off the gas and also put it in gear, I had my tranny rebuilt with a new heavy duty sunshell and put it in myself for a whopping 1,000 bucks.... I don't think your cv shafts would make this kind of sound with what your describing.