Fifth Wheel Capabilities Truck

I appreicate all of the feedback. So, if I am understanding this correctly if I had 4.10 gears put in some day I would greatly increase my towing capabilities. I know the cost is substantial but still cheaper than another vehicle upgrade. How bad would fuel consumption be with 4.10 gears vs. 3.73? The majority of our travel is local with a couple big trips each year. We did travel from Wisconsin to Disney last year. That has been the biggest trip. My curent set up is great with the hensley arrow and the wilderness 3150ds. I am just considering a upgrade with features and stability some day. I still feel like a fifth wheel will be a better towing experience compared to a 35 foot travel trailer. Am I wrong to assume that? I wish I had diesel but it was not in my budget for the new truck.