Drum brakes are cheaper to build.
The 2003 Chevrolet Silverado-2500HD has rear wheel drive.
The 2007 Chevrolet Silverado-3500HD has rear wheel drive.
The 2011 Chevrolet Silverado-1500 has rear wheel drive.
The 2010 Chevrolet Silverado-3500HD has rear wheel drive.
The 2007 Chevrolet Silverado-1500 has rear wheel drive.
The 2008 Chevrolet Silverado-2500HD has rear wheel drive.
The 2008 Chevrolet Silverado-1500 has rear wheel drive.
The 2011 Chevrolet Silverado-3500HD has rear wheel drive.
The 2005 Chevrolet Silverado-1500 has rear wheel drive.
The 2006 Chevrolet Silverado-1500 has rear wheel drive.
The 2001 Chevrolet Silverado-1500 has rear wheel drive.
The 2013 Chevrolet Silverado-1500 has rear wheel drive.