Howling/roaring road noise

I have 09 Tacoma 4x4 , I have roaring road noise that really barks around 60/65 mph..I first thought it might be tires so I replaced them, still noise..I took it to Toyota dealership they said it was front wheel bearings so I replaced them, still roars...I think it is coming from drive shaft! Anyone had problems with drive shaft bearing? I am no mechanic put I think it is coming from drive shaft..any help would be appreciated..thanks

 

Needle bearing in front differential. Put in 4 wheel drive and see if it goes away.

It's common.

 

Should the noise go away in 4x4?

 

Should the noise go away in 4x4 if it's a bearing..

 

The noise should go away or be drastically reduced.

There is a thread on this site. East Coast Bearing results or similar. It has much info on this issue.

Edit: it's ECGS. East Coast Gear Supply for Toyota. You will find lots of info.

 

Thanks