I just had Discount Tire pull the Trail Express off and install the M8008 LRDs. I didn't get the spare done yet, but that'll be soon. My Trail Express tires had probably close to 5K on them with a TST pressure and temp sensor on for the last couple of years.
I could have probably got another year out of them, but they were almost at load capacity and a blow out could have done a lot more expensive damage than the cost of the new tires. And from reading this and a few other forums, when one goes, it's like a signal for the rest to start popping.
2008 Toy Tundra DC 5.7L Bagged w/LTs
2012 Windjammer 3001W, Atriumed