Tow vehicle for 3500 lbs

We towed a 3800# net weight Lance 1685 with a 2006 Toyota 4 Runner 6 cyl, rated for 5,000 lbs. with no problem - had the extra transmission cooler, external brake controller, WDH & sway bars. When it came time to update the tow vehicle we opted for a 2016 Toyota Tundra (I would have preferred a GMC Canyon Diesel but my other half objected). For less money than a 4 Runner, we now have a vehicle that we can't feel our trailer behind. The 4 Runner did fine, but out west, headed up long or steep grades (and otherwise) we could always feel the trailer behind. It sure feels good to be safer with the overall rig ... just one person's experience...