15x8 w/3.75" backspace question

I have some American Racing Outlaw II rims, 15x7 and 15x8 w/3.76 and 3.75 backspacing respectively that aren't being used right now. Can I fit the 15x8's on the rear of my Barracuda without issue? Yes, car is BBP. I would just slap them on and check but they are stored over an hour away and really don't want to drive that far if it's not even close to fitting.