We have a 2006 Dodge 2500 Truck we pull a 30 ft fifth wheel...we go over 60about 65 and there is a roaring noise that seems to be coming from the rear end of truck. Any ideas what this might be...
Sounds like the middle ujoint from the rear driveline. I finally was able to isolate the problem using an infrared heat gun. The bad ujoint was 10deg warmer than the others. While on the truck everything was solid. When the rest driveline was removed the problem was obvious.