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Unread 04-04-2012, 05:46 PM   #1
jzman10
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speedo question??

I have a 01 TJ on 33's and need to change out my speedo gear. I know it should be 31 tooth gear but is it a long or short shaft? thanks

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Unread 04-04-2012, 05:50 PM   #2
DCUnger
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O1 would be a short, from what I have read.
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Unread 04-04-2012, 05:51 PM   #3
JBTJ
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Short shaft. Check out http://www.transmissioncenter.org/speedometer_gears_for_dodge_and_jeep.htm So you do have 3.73 gears?
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Unread 04-04-2012, 06:07 PM   #4
jzman10
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yes i do. looking to change out to 4.56 since i do have 33's and i can only get to about 50-55 on the highway..lol
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Unread 04-04-2012, 06:10 PM   #5
JBTJ
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So 4.56 gears and 33' tires would be a 39 tooth gear. I have 3.73 gears and 32's and no problem doing 85+
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Unread 04-04-2012, 06:18 PM   #6
JBTJ
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Quote:
Originally Posted by jzman10 View Post
yes i do. looking to change out to 4.56 since i do have 33's and i can only get to about 50-55 on the highway..lol
I see you have the 4 banger. I would regear to atleast 4.88 or maybe 5.13 for the 33's
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Unread 04-04-2012, 08:35 PM   #7
jzman10
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even if i dont plan to go with any bigger tires..it is a 4cyl auto..would that not run the rpm's to high??
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Unread 04-05-2012, 06:24 AM   #8
JBTJ
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Quote:
Originally Posted by jzman10 View Post
even if i dont plan to go with any bigger tires..it is a 4cyl auto..would that not run the rpm's to high??
I know a few guys that have that combo, 4.88 and 33's and they like it.
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