Tire size question - JKowners.com : Jeep Wrangler JK Forum
 
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post #1 of 4 Old 05-02-2012, 07:47 PM Thread Starter
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Tire size question

I just bought my first jeep and I am just wanting to make sure what size tire I need along with the proper backspacing. I bought a plain jane 2012 Jeep unlimited sport and plan on installing Teraflex 2.5" lift kit along with V-Tec Wheels 372 Raptors so if someone could help me with backspacing and tire size that would be great. I am alos planning on the AEV Procal to adjust my speedometer and get rid of TPMS sensors.
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post #2 of 4 Old 05-02-2012, 11:45 PM
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You want at absolute minimum 4.75" backspace.... Tire size is up to you. At least 35's. You could do 37's with flat fenders and correct bumpstops.

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post #3 of 4 Old 05-03-2012, 08:04 AM
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For offset/backspacing following basic recommendations:
0mm offset or less (4.5" BSpace on 8", 5" BSpace on 9" width Wheel) for running up to 35X12.5" tires, larger bump stops or flatties and minor body mods might be required. Front axle tube&C reinforcements should be considered if running 35" tires
-12mm offset or less (4" BSpace on 8", 4.5" BSpace on 9" width Wheel) for running up to 37X12.5" tires, larger bump stops or flatties and some body mods might be required. Brake upgrade, front axle tube&C reinforcements and gearing change highly recommended if running 37" tires
Note some tire models run closer to the spec'd tire size than others and the ones running larger could still lightly rub at steering lock with the above minimum recommendations.


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post #4 of 4 Old 05-03-2012, 04:17 PM Thread Starter
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I appreciate the help, I think I am going to just go with 33" tires for now and after I find a good gear installer in my area I will bump up to 35s. I just have the 3.21s in right now but considering going with 4.56 gears and good diffs.
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