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Modified JK Tech Tech related bulletin board forum regarding subjects such as suspension, tires & wheels, steering, bumpers, skid plates, drive train, cages, on-board air and other useful modifications that will help improve the performance and protection of your Jeep JK Wrangler (Rubicon, Sahara, Unlimited and X) on the trail.

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Old Jan 18, 2013 | 06:51 PM
  #11  
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From: Canfield ohio
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Originally Posted by brian361us
I have a 2012 jku sport with 6 speed and 3:73 and 33" tires and wouldn't mind 4:10 but think anything more would kill on the highway unless your planning on running bigger tires.
Thanks. That give me a idea of around what gearing. With the 373. Does the jeep lag or is it pretty good.
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Old Jan 18, 2013 | 07:50 PM
  #12  
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From: West Jefferson, North Carolina, United States
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I live in the mountains and does fine like the extra power over my 2007 jku with 3:21 and the sickly 3.8 engine with 33's and the 6th gear was useless and 5 was almost too.
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Old Jan 18, 2013 | 07:59 PM
  #13  
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From: Canfield ohio
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Originally Posted by brian361us
I live in the mountains and does fine like the extra power over my 2007 jku with 3:21 and the sickly 3.8 engine with 33's and the 6th gear was useless and 5 was almost too.
Ya it's night and day with the new motor.
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Old Jan 19, 2013 | 05:28 AM
  #14  
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From: Wolcott ct
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4.10 with a 6 speed should put me in the mid to higher 2k rpm range i beleive, and also give that extra push when going up an incline on the highway instead of having to downshift to 4th and push the pedal into the radiator. I try to stay around 65 or so to help on the mileage as much as possible. Also helps offroad, taking off from a stop, and having to reverse up any type of incline. I started another thread to help me decide on what gearing to go with.Seems as though everyone with the 3.6 running 33s and 35s are very happy with the 4.10. That goes for auto and manual.
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Old Jan 19, 2013 | 08:32 AM
  #15  
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From: Canfield ohio
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Originally Posted by Rkb7773
4.10 with a 6 speed should put me in the mid to higher 2k rpm range i beleive, and also give that extra push when going up an incline on the highway instead of having to downshift to 4th and push the pedal into the radiator. I try to stay around 65 or so to help on the mileage as much as possible. Also helps offroad, taking off from a stop, and having to reverse up any type of incline. I started another thread to help me decide on what gearing to go with.Seems as though everyone with the 3.6 running 33s and 35s are very happy with the 4.10. That goes for auto and manual.
4.10 might be the way I go
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