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33's actaully measure 31"? Procal question

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Old Feb 1, 2012 | 06:05 AM
  #11  
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Originally Posted by lakeguy
33x12.5/15 duratracs
Atleast that is what he said.
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Old Feb 1, 2012 | 06:11 AM
  #12  
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Originally Posted by MrDillClinton
What is your actual tire size? I didn't think Duratrac made a 33 in an 17 or 18" wheel...
I have 33/12.5/15 duratracs. Purchased new 8" wide 15" diameter wheels in December.
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Old Feb 1, 2012 | 06:15 AM
  #13  
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Originally Posted by lakeguy
I have 33/12.5/15 duratracs. Purchased new 8" wide 15" diameter wheels in December.
So you probably gained about 1/2" of lift. I know, wow!
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Old Feb 1, 2012 | 06:17 AM
  #14  
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Originally Posted by lakeguy
I ordered a procal to help with the shift points on my Jk 2dr and went I went to measure it seems like the 33x12.5/15 duratracs only measure out to about 31" I am running 31psi.

Does anyone know what the factory settings are for stock sahara duelers. I purchased the procal mostly for shift points but if it is set for 31 from the factory maybe I just wasted my money.
you didn't waste your money and NO tire measures up to what is listed on the sidewalls.
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Old Feb 1, 2012 | 06:20 AM
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Originally Posted by JK-Ford
So you probably gained about 1/2" of lift. I know, wow!
Yea, only about 1/2". The width and smaller wheels make the tires look larger than what they actually are. I was surprised when I measured them this morn.

Thinking that there would not be much of a change to program in to the procal.
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Old Feb 1, 2012 | 06:22 AM
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Originally Posted by lakeguy
Thinking that there would not be much of a change to program in to the procal.
You can find pages and pages of debate over this issue. I reinerate, any change is worth a recal.
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Old Feb 1, 2012 | 06:23 AM
  #17  
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Originally Posted by wayoflife
you didn't waste your money and NO tire measures up to what is listed on the sidewalls.
So, the stock Duelers may be in the 29" range? I sold them and have no way of measuring. Guess I could go the dealer and measure a sahara tire.
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Old Feb 1, 2012 | 06:45 AM
  #18  
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Originally Posted by lakeguy
So, the stock Duelers may be in the 29" range? I sold them and have no way of measuring. Guess I could go the dealer and measure a sahara tire.
Hey. I think that JK-Ford said that the OEM Duelers are 32".

Try this on for size. \/ \/ \/
http://www.rimsntires.com/specs.jsp
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Old Feb 1, 2012 | 06:56 AM
  #19  
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Originally Posted by lakeguy
So, the stock Duelers may be in the 29" range? I sold them and have no way of measuring. Guess I could go the dealer and measure a sahara tire.
yup, or, maybe like 28" or less. when calibrating your speedo, the only thing you need to concern yourself with is what your tires acutally measure up to on the ground and right at the top of the shoulder, NOT the highest point at the top of the tread.
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Old Feb 1, 2012 | 07:34 AM
  #20  
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Using a tape measure, my sport wheels/tires are right at 30 inches.
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