what is it? :(

[Trainrex]

It's one of three things.

1: Cupped, shifted belt, or tread separated tire.

2: Right rear wheel bearing.

3: Differential bearings failing.


Before you do anything else, try rotating the wheels to the front.

If that doesn't solve it, head for wheel bearings. Just because they are tight, and don't show any play, doesn't mean they are good. I've replaced many noisy wheel bearings that were still tight.

[bako]

I was looking for something wrong under my car today and found this one:
the inner CV coint, which is coming from rear diff (the green one) isn't sitting there tight. I can move it for about 0.5 mm from side to side on any direction. maby it's the problem? As I know the CV joint goes in the ball bearing yes? maby bearing is dead? this freeplay is bit more on left side than on right one.

[bako]

oh godness, it was front left wheel bearing. but it had no wear signs,