Just took delivery of a 05, 2500/QC/SB/4X4 Laramie with the 48RE. When crossing over speedbumps at an angle I can hear a clunking sound that seems to be coming from underneath the truck somewhere in the front. It is as if something is lose and beating against metal around it. I checked the gas tank, exhaust and shook everything I could see. It all looks buttoned down. Any ideas?