I have a 2013 Frontier SV 4x4 short-bed and tow a 21' Flagstaff travel trailer with a dry weight of 3800#. Would like to know what's the most weight someone has towed with a similar vehicle. I have an Equal-i-zer WDH and Prodigy Brake Controller. Last time I went and had it weighed when heading out showed 3940# on the trailer axles, 5540# total on the truck's axles, and a GCW of 9480# overall. I feel pretty comfortable with those numbers, but I'd like to hear from anyone who has been towing for a while and can offer any insight as to other things I should be aware of.