I discovered the following link which allows you to compare your existing wheels and tires set-up to whatever new set-up you are contemplating. It provides the calculations for the differences in wheel-well space, speedometer error, etc.
http://www.rimsntires.com/specspro.jsp
Full Version: Wheels / Tires Fitment Calculator
QUOTE(Alfieg23 @ Jun 20 2017, 08:54 AM) 
I discovered the following link which allows you to compare your existing wheels and tires set-up to whatever new set-up you are contemplating. It provides the calculations for the differences in wheel-well space, speedometer error, etc.
http://www.rimsntires.com/specspro.jsp
I like this one as well:
http://www.willtheyfit.com/
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