drive line noise

[checkthisoutpk]

I have a 2001 explorer sport trac . It has this whirring , winding, noise that seems to come from the front part of the drive lines . It starts the noise as soon as the truck starts down the road and all the way up to highway speeds , but seams to be less at high speed . Just got back from a week traveling and it is all ways the same. Maybe this is normal for this truck, : Oh I got this truck about a month ago Thanks

I have looked some other noise problems, on the forms here.. now I should say that my 4x4 makes the same noise all the time . Turning or not

 

[Chronicrage]

I have an 01 and that noise is NOT normal..have you checked your serpentine belt..does the noise change pitch dependent on gear? if yes it could be tranny bands

 

[checkthisoutpk]

Thanks Chonicrage.. But it is the the dive lines somewhere , transfercase chain cv joints , or outer wheel hubs . When I dive out of my dive way and open my side door and hang out the noise is less than when the doors are closed , coming from rigth under the cab , it,s like a bearing noise , but after my week long trip, something should failed by now ,,

 

[600remguy]

I was driving on a bad hub for 3 months. Never really got any worse, would just sorta "flair up" every now and again. Some days nothing, others it was unbearable. The first time it reared its ugly head, I thought the tranny smoked itself. Finally took off the wheel and brakes to make sure before I ordered the $300 Ford part (no, not the cheapest, I know, but its a Timkin, and Canadian dollars). It was obvious at that point then I could feel it with the wheel on.