Lift the front tires off the ground and spin them, if they don't spin smooth, then the bearings will need to be replaced.
Sorry, I don't think so. Check your axle u-joint, your hub may have been locked in and when the u-joint let go it pulled your truck to one side and lucky for you it broke up real good. Regardless of what it is, you have to get your hands dirty.spankdog said:That sounds more like a brake problem to me than a wheel bearing . Jack up the fronts and give them a spin. A bearing will be pretty obvious because you'll most likely hear a continuous grinding or other noise as it spins. A warped rotor will have an intermiten noise and resistance to the spin. I would check everything out but my guess is one of your pads started to come apart. That would explain the sudden jerk and excessive brake dust. If you do end up tearing it all apart I would replace inner and outer bearings, new dust seal, turn or replace the rotors, and get new pads. I just did a complete front over haul recently and it ran me about 200 bucks. Not too expensive for the peace of mind.:thumbup