I just put Nitto Ridge Grapplers on in 37's and love these things. That said I had a 2015 Lariat with KO2 35's that were E load. I got 40k miles out of them and still probably could have gone 5k more. I did have balancing isues with them the whole time though but none on my OEM gen 2's that are C Load. So far the Nitto Ridge Grapplers seem just as quite, have the same dry performance and have zero balance isues so far. They do perform better in dirt and gravel than the KO2 from what I can tell so far.