my 98 4x4 long box has a 128L tank
The gas tank on the 2012 GMC Sierra-2500HD holds 36 gal..
The gas tank on the 2008 GMC Sierra-3500HD holds 34 gal..
The gas tank on the 2010 GMC Sierra-3500HD holds 34 gal..
The gas tank on the 2006 GMC Sierra-2500HD holds 34 gal..
The gas tank on the 2014 GMC Sierra-3500HD holds 36.0 gal..
The gas tank on the 2011 GMC Sierra-1500 holds 26.0 gal..
The gas tank on the 2011 GMC Sierra-2500HD holds 36 gal..
The gas tank on the 2013 GMC Sierra-1500 holds 26.0 gal..
The gas tank on the 2005 GMC Sierra-2500HD holds 34 gal..
The gas tank on the 2011 GMC Sierra-3500HD holds 36 gal..
The gas tank on the 2004 GMC Sierra-2500HD holds 34 gal..
The gas tank on the 2009 GMC Sierra-2500HD holds 34 gal..