Easy Wheel Fitment Calculator
 

For all the "will they fit" questions, heres an easy tool to use to determine front spacing and back spacing. Plus the website has tons helpful wheel info.

http://www.flushstance.com/wheel-divider/

This calculator includes a visual reference and includes tire sizing.

http://www.willtheyfit.com/

Better than this?
http://www.ft86club.com/forums/showthread.php?t=25177

wow thats amazing. Good to see its specific to our fenders, although i think they are a tiny bit off. Wish you can factor in tire stretch as well. Very good wheel fitment info in this thread:w00t::w00t: