If you look close on the tire it looks like it was rubbing but to me it looks like when you run on a flat tire and the ply on the inside show? There set at 15psi when I ran it , only had one run since my clutch didn't take it . 28x10.5 MT ET DRAGS stiff sidewall .
Check your fender for paint wear. My 28x11.5 mt ets rubbed the rear bumber on the inners. Also, took a bunch of meat off the tire. I suspect the car squatting right down on them. Im thinking a 26 in tall tire my cure my issue. Car is lowered in the rear with H&R springs with factory isolators still in.