I have a humming sort of noise coming from my front driver tire. I also have a higher pitched humming noise coming from the rear which i believe is the pinion bearing. I can't aford to fix that now so i'm not worried about it now. My concern is the front end noise. The noise gets louder with the speed of the vehicle. One thing i noticed is around 65 the noise almost disapears. When i turn to the right the noise gets louder and dims when i turn to the left. There is no shaking the truck still rides smooth just the noise. My assumption was the front drivers wheel bearing so i changed the whole hub assembly. The noise is still there. If anything it might have gotten a little bit worse. Is there a possability that i got a bad assembly??? I also rotated the tires and changed the front dirrential and transfer fluid. What would the other possibilities be? I need to get this fixed, i don't feel safe when i have my kids in the truck on the highway. Any info i can get will be greatly appriciated.