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Old 10-04-2010, 10:36 AM   #1
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gearing and tire size

Hello, I just bought a 06 Wrangler X 6 speed manual with 56000 miles . Currently it has a Skyjaker 4" lift and 33" tires. I will need to repalce the tires soon and wanted to get some feedback about going to 32 X 11.5 X 15 size tires as opposed to keeping with the 33's. My prior jeep was a stock 98 sport and the 2006 seems a bit gutless with the large tires. My brother has a 97 with 33's and just spent 1000 to replace the rear and I would like to avoid that. How can I tell what type of gearing or rear axle set up I have and will the 32" tires look silly from what I have now? Also will going to 32's be easier on the rear and get back some of the performance?? Thank you !!

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Old 10-04-2010, 10:44 AM   #2
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If you look at the rear diff there is a metal tag on the left side. There are a bunch of #'s embossed in it. The last 3 are the gears. It's dirty and hard to read, but you can do it. While you're looking, note the drain plug in the diff. If it's metal and has a square recess to accept a socket driver, it's a D44. If its larger and a plastic plug, it's a D35. Your front will be a D30 with the same drain plug as a D44.

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Old 10-04-2010, 05:41 PM   #3
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any thoughts on the tire size
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Old 10-04-2010, 05:50 PM   #4
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I have a 2006 six-speed also. I run 33's with 456 diff gears. It runs great with plenty of pick up and power. I have no use for first gear right now but when I go to 35's I expect to still be in good shape.
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Old 10-04-2010, 07:36 PM   #5
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You won't feel any power gain by going down 1" in tire height. I have BFG 32's on my 2000 with 3.07 gear and it runs good(can't use 5th gear) but Jeeps are not power houses no matter what tire size you have. Sounds like time to regear or live with it. Sorry
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Old 10-04-2010, 10:42 PM   #6
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The OP (#1) mentioned "changing the rear" I'm sure you know that you need to regear both the front and rear.

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