i used the search but couldnt a definite answer. When rolling at idle the truck make this weird clunk/thump sound whether it be on smooth terrian or rough. It only does this when rolling at idle. Doesnt do it when i hit the gas or turn the steering wheel. I had the intermediate shaft already replaced if that helps. Anyhow I would take it to dealer but they would probably say its normal and most all my warranty just expired today. :?