FordGuy1
Adventurer
I ran 37x12.50s on 17x8.5 wheels for about 2 years. The tires were Load D range
I recently changed to 37x13.50s on 20x10 this summer......the currently tires are Load E range
The truck feels MUCH MORE stable and solid, but the tire/wheel combo also weighs a decent amount more
The 10 ply's perform way better on full size vehicles for sure. I would not use D rated on a full size if you have a choice.