I experienced the same thing with the stock Michelins, so for the last set, I bought Firestone Destination A/Ts. The tread life is much better so far, but I probably only have 15k miles on them.I’m not a huge fan of the new tundra from the outside. The inside does look good though.
I have a 2017 tundra with 70k miles. I will say it eats through some tires. I’m about to be on my 3rd set. Any reason why they won’t last long?
Every set of those Michelin LTX A/Ts started showing tread wear on the outside WAAAAY too early.