under the steering column on the left side..the larger of the 2 boxes
Could be the 4x4 Control Module.
The 2008 Chevrolet Suburban has rear wheel drive.
The 2012 Chevrolet Suburban has rear wheel drive.
The 2011 Chevrolet Suburban has rear wheel drive.
The 2006 Chevrolet Suburban has rear wheel drive.
The 2005 Chevrolet Suburban has rear wheel drive.
The 2001 Chevrolet Suburban has rear wheel drive.
The 2014 Chevrolet Suburban has rear wheel drive.
The 2010 Chevrolet Suburban has rear wheel drive.
The 2004 Chevrolet Suburban has rear wheel drive.
The 2009 Chevrolet Suburban has rear wheel drive.
The 2002 Chevrolet Suburban has rear wheel drive.