Roe

iTrader: (10)

I have a 2006 GS300 RWD w/55k on the odometer.

Lately I've noticed a distinct rumbling/vibration that you can feel
through the gas pedal or the steering wheel.

Symptoms:

- Regular city driving it isn't noticeable.

- When driving on the highway, starting at approximately 55mph, the
vibration can be felt through the gas pedal and steering wheel and
slightly audible via the ears.

- When driving at said speeds, when turning the steering wheel to the
left slightly it goes away altogether, but becomes more pronounced
when turning to the right.

- The odd thing is, even when the steering wheel is turned to the
right slightly, the vibration isn't constant but every, say 50
rotations of the wheel/tires.

Any suggestions before I take it in? Bad wheel bearings, shock/s?

caveman

When was the last time you had the tires balanced?
If it's been awhile, you can try that first and see if the highway speed vibrations go away.

Roe

iTrader: (10)

I've tried 3 different sets of wheels/tires including the stock wheels in the last 2 months and the problem persists.

Roe

iTrader: (10)

Anyone else with any suggestions?

Doing some research here, it looks like it may be the front passenger side bearings?

bigblack06

iTrader: (20)

Could need either a high-speed wheel balance or maybe one of your rims is bent. It happend to me when I had my 430 and I had to get the rim fixed. The mileage is kind of low for wheel bearing but that would be my last guess.