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will 245/45R18 fit on my 07 GT?

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Old 03-01-2012, 06:13 PM
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Foots
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Default will 245/45R18 fit on my 07 GT?

I currently have 235/50R18 tires on my 2007 Mustang GT. Just wondering if 245/45R18 will fit without any problems.
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Old 03-01-2012, 07:20 PM
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Jazzer The Cat
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So long as you have an 8" wheel, it will fit no problem. Your speedo/ODO will be off a bit on the high-side, so you should use a tuner to correct it

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Old 03-03-2012, 03:21 AM
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^ What he said. You can fit up to 255 to be safe and maybe 265.
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Old 03-04-2012, 10:05 AM
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Originally Posted by Jazzer The Cat
So long as you have an 8" wheel, it will fit no problem. Your speedo/ODO will be off a bit on the high-side, so you should use a tuner to correct it

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When you say tuner, you are talking about those SCT handheld tuners, correct? If so, what is the revs/mile in 245/45r18 tires?
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Old 03-04-2012, 04:07 PM
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Stoenr
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255 is a better fit.............
But the rev's per mile vary by manufacturer, 778-782 seems to be the average

759 is the OE tire rev per mile fyi
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Old 03-09-2012, 09:42 AM
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Originally Posted by Stoenr
255 is a better fit.............
But the rev's per mile vary by manufacturer, 778-782 seems to be the average

759 is the OE tire rev per mile fyi
Do you think the 245 will look too small on the car?
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Old 03-09-2012, 12:12 PM
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Stoenr
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Yes, especially if not lowered. Hello wheel well gap! Its bad stock, that will be worse.
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Old 03-09-2012, 02:28 PM
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There will still be wheel gap, drop it! lol
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Old 03-09-2012, 07:11 PM
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How much do you suggest dropping? 1 inch? 1.5?
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Old 03-10-2012, 03:48 AM
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Measure your wheel gap, i usually leave about a .5-1 inch inch gap all around.
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