K-bit

I have an 87 951 and 2 sets of ROH rims in 7.5" x 17 and 8.5" x 17. I would like to run the 8.5's all the way around with 245-40-17 on all 4 corners. Will I have any problems with setback spacing? Here are the spec's for the wheels:
ZR6 17X7.5 5X130 48P
ZR6 17X8.5 5X130 45P
Thanks,
Jack