Low frequency oscillating vibration at highway speed

[turnertech41]

I have a 2017 ram 1500 4wd, when at highway speeds, 60 plus in left turning curves I get a oscillating vibration and roar. Truck has 60k on it, been like that since I bought it at 40k, I’ve had bad wheel bearings in a ram before, it’s was evident at low speed as well as high speed. This only happens in left curves, also, in the same wheel, at real low speed breaking, I hear pulsing coming from the master cylinder and noise from the right front. I haven’t had the opportunity to tear it down, but I did see if there was bearing slip when the tire shop rotated tires.

 

[NJMOPAR]

Sounds like a warped rotor, especially with pulsing.

 

[Jojo22]

I am having this same issue on my 2009. I have replaced rotors and hubs. Still have vibration and roaring when turning left. Did you fix your issue?

 

[18CrewDually]

Rotors rarely "warp" that would cause an issue. If a roar increases turning a certain direction, say LEFT, then the Right side (passenger) hub bearing is usually dry/bad. It gets loud because you're loading the outside smaller bearing that is either defective or contaminated.