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Re-gearing for tires

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Old 08-26-2012 | 05:56 PM
  #1  
buckin84's Avatar
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From: Jackson, MO
Default Re-gearing for tires

I have an 07 Unlimited X and am running a 4 inch Superlift with 33 inch Nitto Mud Grapplers. I would like to go up to 35's in either the Nitto Trail Grappler or Goodyear MTR, but not sure about gearing. Right now I'm not real happy with performance on highway/offroad, after looking at the charts it appears that the 5.13 gears would be the best for tires ranging from 33-35. Any info regarding performance would be appreciated. Also I know that the RPM's will be higher but the engine will be working less hard to move the jeep. O ya I believe I'm running stock 3.21's and it's an Automatic.
Old 08-26-2012 | 05:58 PM
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Default

Originally Posted by buckin84
I have an 07 Unlimited X and am running a 4 inch Superlift with 33 inch Nitto Mud Grapplers. I would like to go up to 35's in either the Nitto Trail Grappler or Goodyear MTR, but not sure about gearing. Right now I'm not real happy with performance on highway/offroad, after looking at the charts it appears that the 5.13 gears would be the best for tires ranging from 33-35. Any info regarding performance would be appreciated. Also I know that the RPM's will be higher but the engine will be working less hard to move the jeep. O ya I believe I'm running stock 3.21's and it's an Automatic.
Your '07 with automatic should have come with 4.10 gears.
Old 08-26-2012 | 06:09 PM
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Default

Originally Posted by ronjenx
Your '07 with automatic should have come with 4.10 gears.
Ok,

I was unawear of that, either way what would I gain in going with 5.13's?




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