I -think- the 777's have Goodyear, but I would have to call someone in the shop to be sure. I haven't done an up close walk around on one since I first got checked out on it, about 3 years ago, but I think all of Delta's plane's tires are Goodyears.

What about tire pressure? I like to run mine a little higher than what is printed on the sidewall, how much above that number is safe?