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Old 12-07-2007, 06:37 AM   #26
LS1Hawk
 
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Quote:
Originally Posted by BonzoHansen View Post
No, that is the aspect ratio. Your sidewall is 45% of the section width of your tire (ie 215, etc.).

OD = Overall diameter

http://www.1010tires.com/TireSizeCal...?action=submit

For instance, my 77 has 245/60/15 tires, which have an OD of 26.57"
A 215/45/18 (making up a size) is 25.61"

What ever tire size you buy really needs to be +/-2% of your stock tire.
Thanks for the calculator. I think I'm good. My stock tires are actually 215/45/18. I was looking at a set of Dunlop Winter Sport 3Ds at 215/55/16, which comes to an OD of 25.31.
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John

Last edited by LS1Hawk; 12-07-2007 at 06:39 AM.
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