What was the unloaded truck weight per axle? It seems a bit light on the front axle, or not enough weight transfer with the WD. Even under all specs, it may not tow well without a properly adjusted WDH.
A & A parents of DD 2005, DS1 2007, DS2 2009 2011 Suburban 2500 6.0L 3.73 pulling 2011 Heartland North Trail 28BRS 2012 VW Passat TDI