I have a 2004 silverado 1500, 98000 miles. The front brakes automatically apply themselves after about 10 miles of driving even with minimal use of the brakes. They begin to heat, smoke and vibrate. I've replaced all calipers, rotors, pads, and rubber hoses. Problem not solved. It seems like the system is building its own pressure. Can anyone help?

 

When my 04 was doing that i found that both front caliper pistons were snapped in half. I know it doesn't help much in your situation but that is what I found to fix mine.

 

maybe a stuck caliper