We pull a 2007 Tahoe behind the Greyhawk. Funny thing GM says the loaded weight of the Tahoe is 5500# but when I weighed it with my family (2 newborns and an 8 yo) it weighed 6600# and I was not carrying any gear! I am using a Blackhawk 10,000# tow bar. It tows fine but I notice the weight on passes. The aux tank isn't 500# with fuel. Gas is about 6# per gallon. And the tank is less than 100#. So that means for my 50 gallons of usable fuel plus the tank the weight is less than 400#. When we switched from the JayFlight to the Greyhawk we made a serious evaluation of what we really needed to carry. In our old setup we stored stuff for all seasons. We don't now. I'm trying to manage to GCWR and GVWR. It is a bit of a challenge but it can be done.
2004 Chevrolet Silverado 3500 LT with a 2004 Jayco JayFlight 29BHS
2014 Greyhawk 31FS with a 2007 Tahoe toad
2014 Thor Palazzo 33.3 with a 2007 Tahoe toad