One problem related to brake disc pads has been reported for the 2007 Chevrolet Silverado. The most recently reported issues are listed below.
I began hearing a grinding sound in the front end. Upon removing the tires and rear brake drums I noticed the left front brake pads and the right rear brake shoes showed excessive wear. I know that combination disk/drum brakes use a proportioning valve to adjust hydraulic pressure. I also know that newer systems are dual circuit with one front and one rear wheel on each circuit. I feel my proportioning valve is either misadjusted or malfunctioning applying greater pressure to one circuit over the other. This could cause swerving or a spin out under heavy braking situations.