growling vibration in front left side

I have a growling vibration with some slight steering wheel shake. It's as if the transfer case is engaged but it's not. The growling vibe is constant whether its in normal 2wd, 4wd, and neutral.
the noise goes up and down with the speed of the truck. (I put it in neutral and coast the noise slows down with the truck). I replaced the tires, rebalanced 4 times then the tire shop replaced the tires with a different style. Took to a local reputible shop, they said they can't figure it out but the cv joints and bearings are all good. Told me to take it to Toyota to see if they can pin point it. I read it could possible be the needle bearing but other threads say it will go away in 4wd if it is. My issue is there all the time no matter gear, 2wd, 4wd or neutral. I put Blistein 5100 shocks on the truck 3 yrs ago and the setting for the front is set for 1" lift as I put tires on that were 1" higher than stock. Also had a western plow on the front for couple of winters.
Can any one chime in that had this exact experiance ?

 

How were the bearings checked? Mine were deafening loud and you couldn't tell, even off the truck. I could still spin the wheel by hand with the truck lifted off the ground, and there was zero movement when I was pushing and pulling on the wheel. Trying to turn the new one and the old one by hand off the truck were both relatively hard, i couldn't have noticed a difference. The new bearings was silent in comparison.

 

They tested bearings like you did plus put it on the lift ran it in 4wd while listening with a stethoscope, also drove it