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Old 10-03-2011, 07:26 PM   #1
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What gear comes with what?

I have been on two different Jeep web pages to build your own. On one sight if you chose the auto you can choose a 3.21 or a 3.73 gears. The other web page if you choose the auto it removes the 3.21 and gives you the 3.73. I am looking to buy a JK and want the 3.73 gears and I cant find one on the lot with the 3.73 but if they come with the auto I wont have to order them. So what do you get with the auto 3.21 or 3.73? And is a good idea to get the Track Lock option?

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Old 10-03-2011, 07:33 PM   #2
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Auto comes with 3.21 this year, pretty stupid move by Jeep, but it is what it is.

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Old 10-03-2011, 08:00 PM   #3
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I just looked at window stickers on a couple of '12 unlimited sports with auto. One read 3.73 and the other 3.21.
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Old 10-03-2011, 08:03 PM   #4
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Starting in 2012, autos come with 3.21 standard.

And yes, you should get "Trac-lok," which is Jeep's way of saying "limited slip differential."
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