Loud humming sound coming from front right wheel. Think it might be the wheel bearing, but not sure. Anyone have any suggestions what it might be?

 

at any speed? in reverse too?

 

I had humming from right wheel. It was the bearing. Not very difficult to replace. I believe that it cost me around $160

 

If it's an S type blazer it probably is a bearing. If it's the right front bearing, it should get louder on a left turn, as the weight shifts to the right side. They are easy to replace.