Here is the link to the video:
Its not really a humming, its more less a whine noise. It happens in 3rd gear and above, seems like it gets higher pitched with higher speed. I'm suspecting its one of the mud flaps on the rear wheel, its very close to the wheel and seems like if i tap the throttle in 3rd gear and above, it causes it to occur. Does not happen if 3rd gear or below or in neutral. The noise will stay constant if i get the throttle just right.
Transmission shifts fine, no grinds and has clean fluid in it. When i flushed the transmission, there were no metal or anything in the old fluid.
Don't know, maybe others encountered the noise and have anything else to chime in, ima try to fix the mudflap and see where that goes.