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Wow, just had my gears changed to 5:13 along with the Superchip programmer. Once I changed my bumpers and added the winch and larger tires it ran like a dog going up hills. Gas MPG are back up to 18 on the highway and it runs smoother. If you are thinking of doing the upgrade, don't wait, you will be happy with the results.
 

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Bingo. I presume you're talking about a pre-2012 auto transmission. What size tires?
 

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Just to clarify...you've got a '10.

Otherwise, peeps would running out to get 5.13's and superchips. Not a good combo with the '12's. :D
 

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1sgjeep said:
2010 2dr Auto, 295/70/17 Nitto
Yep, I bet those tires were killing you on the hills too. Congrats on the regear. That's why when folks ask about adding CAIs and all other sorts of nonsense to get more power out of their 3.8, the better play is usually gears.
 
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