re: Blazer loud humming noise

I have similar problem. as this posting

It started last week about the same time I changed the brakes pads.
I started hearing a loud humming/moaning noise from the front of the truck.
The diffrence is:
1)It only happens when im going slower than 40k
2)It comes and goes. Some days i won't even hear it...
3)When i apply the brakes the noise stops.

I have checked the brakes and everything seems fine.
I am assuming it's the bearings..
But I wanted to get some advice from the pro's in this forum?
any help would be great!

Yip, sounds like bearing or a dry CV joint.

I've never serviced my cv joints, how can I tell if it it's dry?

look at the CV boots and look for breaks.

I have had my CV joints, brakes/rotors and wheel bearings inspected by my mechanic and he says there in great condition.
I tried my best to explain the problem to him and we even took the blazer for a spin trying to make the noise. Of course it didn't happen at the time, but today I noticed it moan again.
So now I'm out of ideas and don't know what to check from here.:confused:

ideas??__________________