Yes. Mine has 265's Firestone Steeltex's on the stock chromeys. Did a stint out west with the family this summer shortly after purchasing it (roughly 6k miles round trip) sustained a usual speed around 80 - 85 & hit brief speeds of 95 - 100 (3:55 gears) and it was fine. Yea, I know 95 - 100 with the family, I only had the truck a few months and just couldn't resist it, especially since the limit was 75 and no one was in sight for MILES. I'm probably going to go up to 285's soon, since I hear they dont rub and give a much better ride. Try a search under "tires" - about 2 - 3 weeks ago, good post, lots of info on tires. my $. 02