I’ve got an 06 Suburban 2500 4x4 8.1L with a 4:10 rear end. I pull a 6500 lbs travel trailer with it. Before this Suburban I had two others with the 3:73 rear end. With those on long grades they’d have to come out of overdrive. With this one I can pull long grades just fine in overdrive and it doesn’t do the annoying shift down constantly like the 3:73s did. But I’m do for tires soon and was thinking about upsizing from the recommended 245/75R16 to 265/75R16. I know that by upsizing I’m going to reduce the torque. Has anyone done this and noticed a difference with the tow? I don’t want to upsize then get stuck with the constant down shifting on grades again.