I'm not worried about it. My spare for the 7.50R16 set of tires has a date code of 96. Now that might bother me a little, if it weren't just a spare. I'll be parked inside 99% of the time, and I cannot get over about 55mph anyway, so hopefully I'll survive a blowout. (I've heard these have steel cords in the side walls too, I'm not sure if that's true, but if it is, I doubt a blowout will happen, they'd probably just start leaking from dry rot (which these don't show any signs of, by the way. They look as good as the brand new tires that they are)