My 2010 is supposed to be a S110 as well, but it's huge compared to a normal 350 DRW.
More info about the S110 from Wikipedia.
https://en.wikipedia.org/wiki/Dana_S_110General Specifications
Ring gear measures 12.25" or 311mm.
Axle shaft spline count: 34 Spline
Ratios
OEM ratios range from 3.07:1 to 6.50:1
Common Applications
2005-2008 GM 4500
2005-2008 GM 5500
2005-2013 Ford F-450
2005-2013 Ford F-550
2008-2013 Dodge 4500
2008-2013 Dodge 5500
2008-2010 & 2015-2016 F-450 Pick up trucks
Model year 2011 - 2014 Ford F-450 pick up trucks, Class 3, use the Dana 80 axle
Various other heavy duty commercial applications