Wheel bearing wisdom: HALP!

4x4 4.0L automatic.
Toyo Open country AT3 tires with about 25,000 km on them

Over the past few months the wheel bearing whirring sound has been getting worse in my truck. There's also vibration coming through the steering wheel, floor boards and truck in general.

Of note: when I make higher speed or sharper right turns, the sound and vibration almost disappear completely. When I make left turns the sound is pretty consistent with straight line driving. This led me to the diagnosis of the front passenger side wheel bearing needing to be replaced.

I swapped out the front passenger side wheel bearing assembly with an SKF brand assembly that I bought online.

Took it for a test drive and the sound is still there!

Now I'm trying to figure out if it's the rear passenger side or if I should just replace the front driver side too. I'm going to put it up on jack stands tomorrow and test all 4 sides for play and vibration/noise while spinning the wheels. Looking for any advice on diagnosing which wheel bearing is in the worst shape and curious if anyone else has had issues with thinking they were replacing the bunk bearing only to realize it's a different one making the noise.

In hindsight I probably should've jacked it up and tested both front wheels for play and roughness/vibration while spinning before deciding which side to replace.

 

Just do the other front

 

My daughter’s outback had a loud bearing. I had 3 different people ride with me with the windows down to try and see which one it was. I think all 3 picked different wheel and one even the wrong axle. I even shot the hubs with a heat temp gun but couldn’t tell.

On jack stands I could feel it by spinning the wheel, and was the only way to be sure which one.

That frequency for some reason was hard to pin point.

 

As 999 noted...

I had the EXACT same issue OP is having, purchased an additional wheel bearing for the other side and noise was gone. From now on I would just replace both.

 

always do hubs in sets if you can

 

Replaced the driver side today. Solved the problem. No more noise!

Thanks everyone for the info and your input.