For what it's worth, I've been happy with the Toyo Open Country A/T tires on my stock suspension, stock tire size, stock rims 3rd gen Tacoma. We've taken them on some decent terrain including snow and ice, sharp rocks (with sidewall slicing risks), and mud without any issues. I've never felt like I needed more traction. I think I've got about 12k miles on them so far in about a year.