2000 Chevrolet Silverado Front Differential

Has the suspension's ride height been altered? If it has, besides the legal issues, you've adversely affected the front-to-rear brake balance, steering response, handling, drive shaft angles, a non-adjustable alignment angle called "scrub radius", and the angles the cv joints go through.

I suspect you also have aftermarket wheels that are wider than the original wheels. With the original wheels, they were designed to place the vehicle's weight directly over the center of the wheel bearing assembly. Every time you hit a bump or pot hole, the forces were distributed evenly across the bearing. Wider wheels or those with a deeper offset place the weight further out, and that acts like a lever putting uneven force on the side of the bearing. Repeated bearing failure is the common clue.

You won't like to hear this, but you can solve all these problems by returning the truck to its designed ride height and reinstalling the proper size wheels and tires. Trucks with altered ride height also experience repeated universal joint failures. No suspension and alignment specialist ever lowers his car or raises his truck when they understand all the things that can happen. Also remember the world of automotive marketing is extremely competitive, and if a manufacturer can advertise one more inch of leg room, one more horsepower, or especially one more cup holder, you can be sure they're going to do it. If they could produce a truck with a lifted suspension, or a car that drags on the ground, and they knew there would be buyers, you can be sure they would do it. They don't because they know it can't be done without compromising safety and reliability.