Tire height question - help needed - Ford Mustang Forum
 
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post #1 of 3 (permalink) Old 03-18-2016 Thread Starter
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Tire height question - help needed

Just ordered some new wheels 20x8.5 and 20x10's
Ive seen alot of people in which their tires looked really off, like different sizes compared from the front to the back.

I dont want to be that guy, so im trying to figure out what tire heights to go with. Im thinking about going with what American Muscle recommends and going 255/35's in the front, and maybe just a little wider from what they recommend with 305/30's in the back. From what ive read online the 255's should be 27.0" tall, and the 305's 27.2" tall. I would think would be close enough to look pretty good. I also know that sizing also depends on the tire manufacturer. Do you think this setup will look good? Or do I need to go with a 305/35 in the rear to match the front. I have also thought about going with a 295 in the rear, but they seem alot harder to find. Looks like I might be going with the Mickey Thompson Street Comps because of the price. These are going on Deep Dish FR500's with a 45mm offset on a 2011 GT

- Thanks


Greg
2011 Race Red GT

Just an old married guy (with kids) and two expensive hobbies...
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post #2 of 3 (permalink) Old 03-18-2016
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Just my 2 cents, because these cars have a bit of rake (e.g., rear is higher than the front), the wheel gap looks larger in the back and that's what makes it look off even if the wheels are the same size. I have 27" tall 255/45/18 all around but the back tires look smaller so I'm planning on dropping the rear only.


2011 Sterling Gray Metallic 5.0 GT Premium, Manual, 3.73, Brembo, HIDs

Mods: 2010 AM GT500 wheels + Bridgestone Potenza S-04, GT500 axleback, MGW race spec, FRPP P springs, KONI STR.T struts/shocks, Steeda adj. panhard, BMR rear LCAs+relocation brackets
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post #3 of 3 (permalink) Old 03-18-2016
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Look up the tires on TireRack, and go to the "specs" tab, and it will tell you the exact diameter. You might want the rear diameter to be a hair bigger than the front, rather than the other way around.

On the same specs sheet, you can also check the wheel width for the tires. Make sure your wheels fall within range for the tire. I think 305 is a bit on the wide side for a 10" wheel.

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