We have used on our commerical fleet almost every brand of tire. Currently (past 2 years or so) we are running Firestone Transforce A/T's and are getting over 50,000 mile per set. Our trucks are heavy loaded, service body trucks that are used on new construction jobsite daily. The Transforce's have just the right amount of traction for our needs and are not too loud on the street . They are running the stock 245/75-16 load range E (10 ply) size except for My truck, which is the 95 4x4 and is running 265/75-16 lload range E Mich LTX-2 and I have gotten over 40,000 on them currently and will replace them next month. The Firestones are great, the Mich has a problem with "Wander" now that they are worn, which is strange, normally tires wander more when new and have a lot of tread. My 2cents