Michelin answered my Tire Problem
The Goodrich A/T Load Range C tires that come with the 2008 Toyota Tundra are a light weight tire to get you off of their parking lot. The tires never did fail on the paved highways, but they did wear quickly and became a liability on my frequent non-paved road trailer towing, all from rock punctures when the tires were 50% worn.
Costco now offers a Michelin LTX A/T2 LT275-65R-18, Load Range E with a maximum load rating of 3415 pounds. I travel with 43 psi cold of Costco Nitrogen in the tires. The tires ride firm, but that is why I drive a pickup truck and want tires that I can depend on getting me where I need, or want, to travel. Each tire cost $235.00, less coupon for $80.00 off of a set of four tires purchased. I know, not inexpensive, but neither are the less than expected performance Goodrich Load Range C original equipment so generously provided from the Toyota factory. Much like the generous Goodyear Marathons tires provided for the Airstream trailers from the factory. I bought a fifth matching aluminum wheel for the truck and mounted a Michelin on it as well. I may not get 50,000 towing miles on these tires, but if the tires remain trouble free, I plan to replace them with the same. The tread is aggressive for rain, mud and snow and are less noisy than the AT Goodrich treads. It has already snowed on the Front Range of Colorado, with plenty of snow in the mountains at tree line!
When I bring the truck into Toyota for oil and filter changes, they do not mess with the tire pressure when they see the green valve caps on each wheel.