2014 Forester hub bearing diagnosis

Hi All,
I have a 2014 Forester with ~135k miles on it. I have noticed a humming coming from somewhere at highway speeds.
I just replaced a bad tire (it had thrown a belt), that I thought may be contributing to the noise, but the hum continues. Its pitch is related to road speed (not engine speed), and doesn't seem to change much when turning.
I think I may have a hub bearing going out, but how can I find which one? I have not (yet) put it on jacks to see if I can tell by wiggling. It is difficult to ascertain where the hum is coming from while driving.
Sincerely, Duane
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On 6/14/2018 7:00 AM, TheSeeker wrote:

With Subaru AWD, I have always thought that all tires should be the exact same diameter and if you replaced a bad old tire with a new one that might be the problem and maybe worse than wheel bearing.
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On Thursday, June 14, 2018 at 2:59:51 PM UTC-5, Frank wrote:

I replaced the bad tire with another used tire of the same circumference, because that is what I had heard about Subaru AWD as well.
Duane
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On 6/14/2018 8:03 PM, TheSeeker wrote:

That's good. I had heard that some shave a new tire to the same size.
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