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Old 06-28-2013, 09:57 AM   #1
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How big can I go?

I'm looking to buy bigger AT tires for my new '13 Wrangler Sport Unlimited (it came with regular all-season tires). What I'm wonder is how big can I go without having to change my gearing?

A friend suggested maybe 37" but he doesn't have any Jeep experience... that is what he has on his truck.

Any suggestions appreciated!

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Old 06-28-2013, 11:12 AM   #2
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we don't have much low end power to push for bigger sizes. it will mostly depend on ur gearing. do u have 3.21 or 3.73? do u have an auto or manual?

3.21 w/ manual or auto = 33
3.21 w/ 35 = ur gonna lose 6th gear.
3.73 w auto = 35

but there are others that have 3.21 and have 37's...same with 3.73. it WILL be sluggish nonetheless upsizing to 37's.

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Old 06-28-2013, 11:21 AM   #3
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I have 3.21 manual... I wasn't actually thinking of going as high as 37"... I was thinking somewhere between 30"-33", but wanted to make sure.

Thanks for your help!
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