Hey group I have a 2006 Dodge Dakota that has a really bad whining noise. Started at about 5,000 miles and has gotten increasingly louderover time. Seems to be coming from the back, but not sure. High pitched at highway speeds, and become kind of a groan at 10 to 20 mph. I am pretty sure it is not the tires. Friend said it could be a bearing that is bad. Anyone else experience this or have an idea if this is a common problem?