Hi scotty I own a 2009 jeep grand cherokee 3.7l 4x4. My car makes a loud droning noise comming front under the front of the vehicle. The droning noise only appears at 44-47mph and 66-73mph. Also the noise only appears when Im pressing the accelerator. If I take my foot off the gas the sound goes away immediately. Any ideas?? Would bearings or differential do that? Someone told me if it was bearings it wouldn't go away immediately when letting off the accelerator. Thank you scotty love your channel!