I just bought a 2015 Heartland Torque TQ 380. The dry weight of the trailer is 13,800 lbs but the GVWR is 18,000. I currently have a 16K hitch installed in my truck. I plan to upgrade it to a 20K at some point. Do you think I would be able to pull the trailer home from the dealer unloaded with the 16K hitch or should I upgrade it prior to trying to pull it home?