15 x 8 on barracuda backspacing?

Take some wheels you know the dim's on...take some measurements, put some tape on the floor and get a flat edge and go to town...that's what I did to be sure...it's not exact but you can get damn close. Dont forget to take into account tire sidewall buldge too if applicable. It took me a good 2hrs of measuring, re-measuring but it was a learning experience and when I was done I was 99% sure what wheel/tire combo fit on my car...