I have noticed this for a while but it is getting loader. When my AV is moving there is a "Clanking" noise that comes from under the truck when I slow down it does when I speed up it does. It almost sounds like it could be somthing to do with the Driveshaft? Could a U-Joint make this noise? I have 119,000 miles on my AV and nothing has been done to the driveshaft? Any answers would help!