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-   -   Calibrating you speedometer (http://www.wranglerforum.com/f90/calibrating-you-speedometer-248840.html)

NslyJK 06-12-2013 05:10 AM

Calibrating you speedometer
 
Does anyone know what size tire that I will have to calibrate my speedometer due to bigger tires?

NslyJK 06-12-2013 05:10 AM

And also do I need to change out my breaks if I put bigger tires on?

bmpage84 06-12-2013 02:46 PM

Quadratec has a chart based on gear ratio / tire size to select the proper speedo gear when bumping up tires and/or ring & pinion.
http://www.quadratec.com/jeep_knowle...article-46.htm

Your factory brakes should be fine.

Depending on how much wider you go, backspacing on the factory rim may be an issue causing rub during a tight turn. You may need wheel spacers, or get rims with less backspace (negative offset), to push the tires out, away from the fender wells.


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