I ran the 275/50-15 BFG DR's on my stock T wheels for over a year. I needed a 1/4" spacer so they wouldnt rub, but otherwise the wear wasnt bad at all. Aired down, they would leave a very even strip on the launch, but did crown out on the interstate enought to wear them uneven. a burnout or 2 solved that no problem.
I beleive i was running 14-16psi in them most of the time, its been awhile though so i dont really remember.
I have since found a set of 8.5" wheels with perfect backspacing that look 100% like a T wheel, much better fit with them
Gary