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Unread 05-21-2010, 09:43 PM   #1
shredderair
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2010 JK Wrangler 
 
Join Date: Jan 2010
Location: ct
Posts: 30
speedometer correction

i have a 2010 jeep jk and was wondering different ways to correct the speedometer due to me lifting it 3's and 35's
any input and instructions would be great

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Unread 05-21-2010, 10:00 PM   #2
ronjenx
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AEV Procal
Superchips FlashPaq
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Unread 05-21-2010, 10:00 PM   #3
Swagger
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SuperChip or ProCal and do it yourself as well as other mods you may want. Or go pay the dealer to do it, which in my mind is money wasted. Put that money towards somethnig you can own and use when you want like the above mentioned programmers.
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Unread 05-22-2010, 05:21 AM   #4
Jazant
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if the dealer programs the speedo, will the shift points change?
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Unread 05-22-2010, 05:33 AM   #5
Swagger
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I'm thinking the shift points are effected by the gear ratio settings.
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Unread 05-22-2010, 05:40 AM   #6
MilitaryJK4455
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The shift points should change when they set your new tire size in your computer which is what sets your speedo if I remember correctly.
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Unread 05-22-2010, 05:53 AM   #7
N2rock
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Dealers can only change up to 33" tires. For 35's you have to buy a programmer and do it yourself.

Yes- correcting the computer for tire size will change the shift points accordingly.
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