high-pitched squeel on highway curves

[finall]

Originally Posted by H2005

Sounds like bearings to me. Usually you will hear them when turning and they will make a clicking noise when it's pushed in neutral.

So here is the weird thing, which makes me wonder if it is a bearing or not. There is none of that tell-tale clicking sound when a pin bearing goes. Not sure what kind of bearings the H2 has.

You can only hear the squeal at highway speed, not noticeable at all at low speed. I will try to push it in neutral with engine off, to see if I hear anything. Thanks for that suggestion.

[jrs2005]

Stock wheel and tire sizes? Any change if you lock the transfer case? On the gas or off make any difference?

[finall]

Yes, stock wheels and tires. On or off the gas makes no difference.

I have not locked the transfer case. It is in 4 high, because I think it has to be at 65+mph on dry roads?

[jrs2005]

I guess I'd find a lift somewhere and start rotating stuff one part at a time. See if there is any play in the bearings once the truck weight is unloaded. Good luck.