I need some help. I have a '04 lifted Silverado HD, and 31" tired. The problem is that, from the passenger side of the vehicle I hear whats sounds kinda like a bearing going bad, but not complety. I have checked my spindle, but can't find any grease coming out, like you would from a bearing going bad...The sound also increses and decreases with my driving speeds. Short of a rubbing sound, but not metal rubbing, it's hard to put into words. Well, any help would be very appreciated, Thank you...

 

could just be a mud clod somewhere up in there... happens to my truck all the time... you say it doesn't sound metallic... can you hear it getting louder and softer as the tire rotates?

 

From appearance, I don't believe the truck as ever been off road. It is very clean, top side and bottom. The sound is more vivid at lower speeds, but that may just be because of less wind noise. I have also checked my brakes to make sure it wasn't them wearing out and letting me know.

 

check your brake pads they could be worn down to the squeekers...

 

I checked the pads first thing, but they seem to be recently replaced. I would say about 95% of life still left.

 

Grease all the zerk fittings, and then listen for it. Try to eliminate all the moving parts on both sides until it goes away or you find the problem. That's what I would do!