I’m sure cause they will rub...I have had 15x7 and I think 15x8 Cragars too but they are tight....having super stock springs helps I’m sure but everything else on the rear of the car is stock.
I guess my confusion comes about because if i put an 8" tread on an 8" wheel (width), and this is going in a 10.5 wide wheel-well....(accounting for offset to the wider side) how is it going to rub?