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Apparatus802 06-28-2013 09:57 AM

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!

dawhitesJKU 06-28-2013 11:12 AM

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.

Apparatus802 06-28-2013 11:21 AM

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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