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Modified JK Tech Tech related bulletin board forum regarding subjects such as suspension, tires & wheels, steering, bumpers, skid plates, drive train, cages, on-board air and other useful modifications that will help improve the performance and protection of your Jeep JK Wrangler (Rubicon, Sahara, Unlimited and X) on the trail.

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Tires on a 08 JK X

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Old 06-22-2009, 09:12 AM
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Default Tires on a 08 JK X

Would you have to make any suspension mods on a 2008 JK X to fit 31x10.5 with rims that have 5" backspacing? Thanks!
Old 06-22-2009, 09:19 AM
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No. A stock X with the upgraded wheel package comes with 255/75/R17 tires which is 32" x 10.5". The stock wheels are 6.25" BS, so 5" BS will stick out slightly farther.
Old 06-22-2009, 09:20 AM
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Your stock tires are at least 32 inches in most cases. Check your tire size if you have 245/75/16 that is 32 in tires.
Old 06-22-2009, 09:22 AM
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Are they 15" wheels, though? A 15" wheel with 5" of back space won't fit over the brake calipers. 31x10.5 is a common size of 15" wheels, which is why I asked.
Old 06-22-2009, 09:30 AM
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Thanks so much guys! Right now it's about as stock as it can get and has the stock 225 tires on it, pizza cutters! I will only have it in the city so no serious offroading, except in Chicago winters! But the 31x10.5 on a 16x8.5 wheel with 5"BS wouldn't need any suspension mods. Thanks again guys! This forum is great for someone like me who knows nothing and is trying to learn!



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