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Old 10-23-2012, 06:00 PM   #1
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What does this mean? Year groups vs wheel size

On American muscle I can find a 305/40r18 but it's under 2005 to 2010 will these tires work with the 99-04 stangs I don't know what the year is supposed to mean for tires I thought all tires will work if it's the right wheel size?
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Old 10-23-2012, 06:21 PM   #2
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Quote:
Originally Posted by RUNNWLD
On American muscle I can find a 305/40r18 but it's under 2005 to 2010 will these tires work with the 99-04 stangs I don't know what the year is supposed to mean for tires I thought all tires will work if it's the right wheel size?
They're a little tall for the new edge stang. You would want more like a 305/35/18
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Old 10-23-2012, 07:25 PM   #3
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Well cole Johnson says he runs a 305-45r18? An I run a 27545r17 but I know the bigger rim will make it a lil taller but I wouldnt think way taller?
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Old 10-23-2012, 07:35 PM   #4
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That's fine, I run a 40 on my Hoosier
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Old 10-23-2012, 07:38 PM   #5
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Okay sweet so I'll go 305/45r18!!
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Old 10-23-2012, 07:39 PM   #6
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Quote:
Originally Posted by RUNNWLD
Well cole Johnson says he runs a 305-45r18? An I run a 27545r17 but I know the bigger rim will make it a lil taller but I wouldnt think way taller?
Yeah, you would only be an inch taller overall, you might try to pm cole Johnson to see if he had to do anything to get his to fit.
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Old 10-23-2012, 07:41 PM   #7
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Cause I'm going to roll my fenders no matter what to make sure it will fit so I think that will help!!
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Old 10-23-2012, 07:46 PM   #8
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Quote:
Originally Posted by RUNNWLD
Cause I'm going to roll my fenders no matter what to make sure it will fit so I think that will help!!
Yes you have to roll them if you're lowered
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Old 10-23-2012, 08:06 PM   #9
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You need to understand what the numbers on the tire mean. I run a 315/35/17. 1st number is width in millimeters, 2nd sidewall height as a ratio of height to width. So my tire would be 315mm wide, 110.25 mm tall (315x35%), on a 17in wheel.
So a 315/35/17 tire does is taller than a 305/35/17 tire.
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Old 10-23-2012, 08:12 PM   #10
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I run 305-35-18 Nitto Drag radials and I am lowered a good bit. I had to roll both quarter panels so they wouldn't rub on uneven pavement .
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Old 10-23-2012, 08:33 PM   #11
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So if Im lowered about 1.6 in what tires would you run in back with 18 wheels And a 305?
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Old 10-23-2012, 08:36 PM   #12
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Quote:
Originally Posted by RUNNWLD
So if Im lowered about 1.6 in what tires would you run in back with 18 wheels And a 305?
What 18s are you gonna run and what width and offset
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Old 10-23-2012, 08:45 PM   #13
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Wheel I'm going to probably purchase chrome fr500's 18x10 rear and 18x9 front but there the ones on American muscle so they are a 22mm offset?
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Old 10-23-2012, 08:46 PM   #14
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Quote:
Originally Posted by RUNNWLD
Wheel I'm going to probably purchase chrome fr500's 18x10 rear and 18x9 front but there the ones on American muscle so they are a 22mm offset?
You will rub on unevent pavement, I have the same setup 305-40-18 and I rubbed and had to roll the fenders. I'm dropped around 2.5 in the back
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Old 10-23-2012, 08:58 PM   #15
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I rub my fronts a lot. They're 255/45/18s. Profile needs to be 40 or 35 if you're lowered. Im trying to find new ones...
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Old 10-23-2012, 09:30 PM   #16
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I run 265-40-18front and 305-35-18 rear and no rubbing at all now that the qtrs are rolled
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Old 10-23-2012, 11:02 PM   #17
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So I should go a 305/35r18 and 245/35r18?
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Old 10-23-2012, 11:09 PM   #18
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Yea you can run 245 up front. I run 265-35 up front and 305-40 out back on 18's. Soon to go with 315-45-18's
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Old 10-23-2012, 11:18 PM   #19
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Where do you get the tires and do they make a 305 not a drag radial? And would a 305/40r18 be okay it's just really sketchy going to buy rims and tires on my car on the internet that I hope to god it all fits and goes in my gaps great and feels them
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Old 10-23-2012, 11:38 PM   #20
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Quote:
Originally Posted by RUNNWLD
Where do you get the tires and do they make a 305 not a drag radial? And would a 305/40r18 be okay it's just really sketchy going to buy rims and tires on my car on the internet that I hope to god it all fits and goes in my gaps great and feels them
I get my tires from a vendor from Craig's and cheap. I'm not sure if they make a non drag radial I will check. Well this is when I had Griggs springs with a 1.8' drop.

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And this is with coilovers with approximately a 2.5 drop. I can go lower but this is good for me



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Old 10-23-2012, 11:47 PM   #21
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Quote:
Originally Posted by Mzilla
I run 305-35-18 Nitto Drag radials and I am lowered a good bit. I had to roll both quarter panels so they wouldn't rub on uneven pavement .
Those are some sweet rims. What kind are they?
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Old 10-24-2012, 05:59 AM   #22
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Quote:
Originally Posted by zinc_yellow

Those are some sweet rims. What kind are they?
They are the Saleen replicas that I had custom painted satin black with silver body colored lip.
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Old 10-24-2012, 09:13 AM   #23
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RUNNWILD,

There's a lot of good information being tossed around here, let me try and clear things up a bit.

You can definitely run a 305 out back. The reason we put tires in different sections is because we recommend different wheel widths and sizes for different years. I would go with a 35 or 40 side wall if you're going to go 18's and your lowered.

You can also go with a 245-265 in front! Just to avoid any rubbing, rolling your fenders may not be a bad idea.

I hope this helps. Let me know if you have any questions! Our Mustang Experts are here Monday-Friday from 9AM-9PM EST and Saturdays from 9AM-5:30PM EST. If you want to hit them up, their number is 866.727.1266.

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Old 10-24-2012, 10:47 AM   #24
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you need to maintain the overall height of the tire vs the stock size so the speedometer is correct (it also modifies the final drive gear ratio, taller tires turn slower vs smaller tires that turn faster in terms of tire height)

thats what they are talking about, you need a tire that is overall as tall as your stock setup so everything works right.

the rim size along with the sidewall height (top and bottom) = overall height

a 245/45/17 is as follows

17 inches rim + bottom sidewall + top sidewall = overall height

sidewall height = width * (radio * .01) - The ratio is a percent of the width! most dont get that.

sidewall height = 245 * .45

sidewall height = 110.25 (this is in millimeters (mm))

convert 110.25 to inches by dividiting it by 25.4

sidewall height (in inches) = 110.25 / 25.4

sidewall height (in inches) = 4.34 inches

multply that by 2 to get top and bottom = 4.34 * 2 = 8.68 or 8.7 inches



---------------------------

17 + 8.7 = 25.7 or about 26 inch tall tire


do the same math on a 05-09 it will be taller.
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Old 10-24-2012, 02:54 PM   #25
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Thank you sooo much that helps me out a lot thank you guys!!!!!!
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Old 10-24-2012, 05:52 PM   #26
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Okay guys I'm 26in from the ground on the front and 26 1/2 in the rear from the ground so what tires should I go with please help?
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Old 10-24-2012, 05:54 PM   #27
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Old 10-24-2012, 11:36 PM   #28
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Okay guys I'm 26in from the ground on the front and 26 1/2 in the rear from the ground so what tires should I go with please help?
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