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final crawl ratio

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Old May 14, 2015 | 11:45 AM
  #1  
medic_23387's Avatar
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From: Searcy, Arkansas
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I am trying to figure out what gears to run. I have a 2007 6 speed jk on 37s. I have a rubi case and stock 3.21 gears. Really is pretty slow even with the gears. Don't want to go really low due to weak d30 and my rcvs causing my ring gear to be the weak point. My crawl ratio now is 57. But if I drop 4.56 gears in I'll be at 81. Is 81 to low for my application?

4.46x4x3.21=57

4.46x4x4.56=81

Last edited by medic_23387; May 14, 2015 at 11:48 AM.
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Old May 14, 2015 | 04:33 PM
  #2  
TheDirtman's Avatar
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From: Southwest Reno, NV
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No you should go with 4.88 or 5.13 with 37's The bigger the crawl ratio the better. The front really does not see that much stress off road unless you are running backwards all the time.

Last edited by TheDirtman; May 14, 2015 at 04:39 PM.
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