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2004 - 2008 Ford F150 General discussion on the 2004 - 2008 Ford F150 truck.

Tire Size

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Old Jan 22, 2010 | 11:54 AM
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Default Tire Size

Im just trying to figure out how to determine what size (inches) my tire is from this number 275/70R18? Is that bigger than 285/60R18. these are just some number I reall just want to know how to determine the size in inches from the sidewall markings.
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Old Jan 22, 2010 | 12:01 PM
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No..
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Old Jan 22, 2010 | 12:05 PM
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275/70/18 = 33.2 inches

285/60/18 = 31.5 inches

http://www.miata.net/garage/tirecalc.html
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Old Jan 22, 2010 | 12:07 PM
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this is a good one too

http://www.procomptires.com/info/conversionchart.htm
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