I replaced the stock Firestone Transforce 265/17R75 with Nitto Terra Grappler 285/70R17 tires to get the additional rear payload capacity of 7500 lbs. and noticed an improved ride and reduced sway with the new tires.
I came across two types of Nitto Terra Grapplers though and one was rated at a much lower load capacity though in the same size. Check the exact capacity of the tire you buy to be sure you get the expected rating and check the sides of the tires before they are installed.
One downside I have noticed with the Nitto Terra Grapplers is that the tread design does a poor job of chucking out gravel picked up on the road. I end up having to use a screwdriver to pry it out after a trip.