Backspacing Help Needed - 67 Camaro - Specs Listed

[69 Ghost]

I am posting here because this thread seems to have some of the best backspacing info. I am looking to do something similiar. A C5 brake setup or hybrid with C4 rotors. I am going to get either 17 or 18 inch wheels and I am pretty set on A/R Torque Thrusts with 8 inch rim widths. The tire size will be dictated by the front end which will more than likely be a 245 40/45 series depending on the wheel size. This is just about my last project on this car and it is only a street driver but may see a few runs down a track some day. Currently I have the suspension done with GW uppers, del-alums, Guild mod, KYBs, and hotchkis springs. I want to keep the same size tires front and back for rotation capabilities and I am on a bit of a budget. What is the best backspacing to use when running the same size tire f/r? It appears that a 4.75 or 5 inch is what I need. My rear is a 12bolt with no tubbing. I do not want any rubbing! I lost out on some 18inch rims because they had 4inch backspacing and I was not sure they would fit.