Hi forum. I am having an aggravating issue with my wife's Explorer and looking for some advice. It is a 2007 V6 2WD. It has had a humming issue for a few months now. It gets louder with speed, but is not affected at all during turning to point to a certain side. There is also a very slight vibration you wouldn't notice if you didn't drive it daily. Also feels to me like the vehicle speed is being dragged down slightly faster than normal when foot is off the gas. No play at all when jacked up shaking wheel on any of the four wheels. It was time for tires anyway so I put a new set on and had alignment done last week. No change. I'm still almost certain it is one of the front bearings, bit I can't think of anything else to try to isolate it. At 150k miles it's probably not a bad idea to change out both front hub assemblies, but just wanted to reach out beforehand in case I am missing another possible source of this.