Bearing or halfshaft going bad???

How can I tell what is going bad on my 97 bravada. It makes a whirring noise that increases with vehicle speed and gets louder if I make a left turn and quieter when I make a right one. There is no hitchiness when I turn sharply and the noise is very even (sounds like a bearing to me).

Any help with testing/diagnosing procedures is appriciated.

Thanks.

Please don't laugh...rotate your tires or check the air pressure.

Bearing on right side.

replaced bearing/hub assembly on right side -- fixed problem.

And Chris -- dont you think I would have checked the tire pressure first, after all I do have enough tech knowlege to change the transmission out in this vehicle....

just kidding thanks for the help.

As I get older, I think everyone is as dumb as me :>)
Glad your problem is fixed.

My Bravada has the same problem. Is this a dealer fix or are you able to just do the hub with out dismantling the transfer case.
Ken P

My Bravada has the same problem. Is this a dealer fix or are you able to just do the hub with out dismantling the transfer case.
Ken P The hub is the part the wheel bolts on, you don't have to do anything to the transfer case. I did mine myself. If you have moderate mechanical ability you can do it yourself and save a lot of money. It will take the better part of an afternoon. And isn't very complicated.

Thanks
I took it apart one night and took the parts to the store the next night and got a new one. They tried to jack the price over night by $12, but let me have it for what they quoted me the night before $158. It was not a hard job to do, just awkward getting the hub bolts out. It made a world of difference in the cabin noise. It sounded like it had big mud tires on it before. Thanks again
Ken P

Just so you know if you have to do it again. They are about $140 at AutoZone and Advance Auto.