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Old 01-30-2014, 11:24 PM   #1
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Join Date: Jul 2013
Posts: 163
Recalibrate speedomoter

If I get 37s will I need to recalibrate my speedomoter? In regearing to 4.88

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Old 01-30-2014, 11:30 PM   #2
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Originally Posted by Cheech33 View Post
If I get 37s will I need to recalibrate my speedomoter? In regearing to 4.88
You will need a programmer in any case. The Jeep will not drive once you change gears on newer JK's, not sure about older, could be the same for all.

Also, you will want to recalibrate the speedo to 37" tires.

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Old 01-30-2014, 11:30 PM   #3
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Join Date: Dec 2013
Location: Austin, Texas
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Yes. Check this out to see the speed comparison vs stock tires.Tire Dimensions Made Simple - Discount Tire
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