I just brought home a new camper, 27 feet 11inches. The dry weight is 4,600 and the GVWR is 6,500. I had a WD hitch with sway control and had no problems. Grant it was only a 50 mile tow home and mostly flat. I never went about 2500 RPMS and my speed was between 60 and 65 mph.
I have a TRD DC long bed, 2009 and love it.
I have a Tekonsha brake control that is marvelous and I barley touched the brake to stop.
I must admit it towed easier than I thought but the real test will come later when I hit some more hills this month.
But if I have any problem I may have to trade it in for a bigger truck. There is a picture of the camper on show us what you tow.