One problem related to brake master cylinder has been reported for the 1998 Chevrolet C2500. The most recently reported issues are listed below.
When consumer comes to a complete stop car lurches foward. Consumer has to leave a big gap between consumer and other cars because consumer doesn't know when vehicle is going to laurch forward. Took to dealer , and replaced the master cylinder. The problem was corrected for a couple of months, and currently problem has occurred again.