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Speedo

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Old 02-18-2013, 05:30 PM
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Default Speedo
If I have a rubicon and putting on 35s will I need to recalibrate my speedometer or will it be so minuscule that I won't even notice?
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Old 02-18-2013, 05:32 PM
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It will be off roughly about 4 MPH and your odometer will click off less than actual miles.
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Old 02-18-2013, 05:35 PM
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Have you fixed this and Ifso then how?
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Old 02-18-2013, 05:37 PM
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Think you need to get a Procal. I haven't done it yet. And I never did on my 07 rubi I had.
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Old 02-18-2013, 05:37 PM
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ProCal will fix it nicely. Use the actual measured tire diameter and program it in.
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Old 02-18-2013, 06:01 PM
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If its an automatic, it will have a big impact on how it drives. The tire size must be calibrated to correct the shift points.
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Old 02-18-2013, 06:41 PM
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I'm not sure about a manual but with an auto I recommend it. I have 33s with 2.5 in lift and the speedo was off a lot. The shift points slightly were too, but now everything's fine after the aev procal.
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Old 03-18-2013, 01:53 AM
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pick up the PROCAL worth the $$ Northridge sells them cheaper than everyone else and free shipping.
nice little gadget
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Old 03-18-2013, 04:29 AM
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Your dealership can program it for around $50 as well.
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Old 03-18-2013, 05:53 AM
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Originally Posted by red2010rubi
Your dealership can program it for around $50 as well.
Others have said the dealer won't program a tire bigger than the biggest stock tire.
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