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Old 09-26-2013, 03:15 PM   #1
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Spare tire size?

I'm currently running a 34.4" tire and I need to get a spare. What is the smallest size down I can safely run if I have to put my spare on the truck?
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Old 09-26-2013, 05:51 PM   #2
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Anyone?

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Old 09-26-2013, 06:32 PM   #3
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Truck?

Do you have open diffs and how far and how fast you plan running on this mismatch size tire
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Old 09-26-2013, 07:00 PM   #4
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Not sure about the diffs, they are stock. (99 TJ Sport) how far, I don't know, only if I was stuck out on the road with a flat.
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Old 09-26-2013, 08:28 PM   #5
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If you have open diffs and the tires are close to the same size you should be okay. Open diffs means no lockers or limited slips. If they are stock then they are probably open.

Its best to run a spare the same size or as close as possible on most 4x4's.
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