Front end vibrations at speed

Hey all, I have a 2013 4wd taco with 185k miles and have never had any real issues.

Last week I started hearing some vibrations that seem to be getting louder, coming on at speeds of 35mph+. Sound is very rumbly, kinda like the sound of reving the engine up a hill. It is only audible when driving straight or to the right, but goes away when steering left like changing lanes or even on a slight curve in the road. I have had my tires rebalanced pretty recently (back in june). I talked to a tech at the auto shop today and he said to get the tires rebalanced (on truck) and rotated before he'd take a look. I kinda suspect it is maybe a bearing or cv or something more mechanical though... Does anyone have some advice or experience with this sort of issue?

Thanks,
T

Edit: I havent noticed any change in tire wear, and dont feel the car pulling one way or the other, so I dont suspect wheel alignment to be the issue. Not a car pro tho

 

Passenger wheel bearing

 

I just went through this on my 2006. Swapped both front wheel bearings and it fixed it. Vibration was only noticeable from 50mph - 65mph for me.

 

Wheel bearing, if it doesn't do it when turning left the then i would suspect the passenger