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Unread 08-06-2013, 06:22 PM   #1
kschmalz
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2000 TJ Wrangler 
 
Join Date: Jul 2012
Posts: 36
Speedo gear

Alright I have a 2000 jeep wrangler with a 4.0 and a auto. I just got done lifting it and putting 33 and 4.10 gear now I am trying to figure out what speedo gear I need to correct the speedometer?

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Unread 08-06-2013, 07:17 PM   #2
durango-bob
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2000 TJ Wrangler 
 
Join Date: Jul 2008
Location: Sioux Falls, South Dakota
Posts: 2,615
You are probably pretty close, but to check it, drive it on the freeway for 10 miles according to the mile markers and compare this to the odometer reading for the same distance. If the odometer reads 9.5 miles, your speedo is 5% slow. You can leave it this way and just do the math - if the speedo reads 60 mph you are really going 63. Or you can get a gear with 5% fewer teeth than your current one.
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Unread 08-07-2013, 06:02 AM   #3
JBTJ
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2001 TJ Wrangler 
 
Join Date: Mar 2006
Location: Dallas, TX
Posts: 8,969
You need a 36 tooth gear.
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Unread 08-07-2013, 07:18 AM   #4
RnEmOvr
Have Cummins, Will tow.
 
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1999 TJ Wrangler 
 
Join Date: Mar 2005
Location: Ft Stewart, Ga
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Quote:
Originally Posted by durango-bob View Post
You are probably pretty close, but to check it, drive it on the freeway for 10 miles according to the mile markers and compare this to the odometer reading for the same distance. If the odometer reads 9.5 miles, your speedo is 5% slow. You can leave it this way and just do the math - if the speedo reads 60 mph you are really going 63. Or you can get a gear with 5% fewer teeth than your current one.
In today's world of smart phones downloading a GPS based speedometer app is way easier.


Op read this.


http://www.quadratec.com/jeep_knowle...article-46.htm

Sent from my phone where grammar isn't easy.
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