One problem related to brake master cylinder has been reported for the 1997 Chevrolet Silverado 2500. The most recently reported issues are listed below.
Stopping at a stop light the brakes went to the floor and pulled right. I went into the intersection around 5 feet. Required a master cylinder and left front hub assembly to fix problem. Cost: 808. 57 this follows rear brake problems at 27,097 miles that required pads, rotors, and calipers at a cost of 668. 27.