One problem related to brake drum wheel cylinder has been reported for the 2005 Chevrolet Silverado 1500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Chevrolet Silverado 1500 based on all problems reported for the 2005 Silverado 1500.
I stepped on the brakes and the pedal went to the floor. I stepped on the mechanical parking brake to stop. Brake fluid was on the ground. . I pulled all the wheels and no brake cylinders or calipers were leaking but after tracing the oil it was from a bundled of brake lines under the door.