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newbie- gearing question

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Old Dec 3, 2010 | 11:32 AM
  #1  
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Default newbie- gearing question

Howdy folks-
07 jku X. Finally lifted it and put some shoes on! Really excited about it. Went with the Zone Offroad 3" suspension w/ 35s. Looks awesome in my opinion!

Questions that crossed my mind today after the fact is: gearing... am I going to screw anything up by running stock X gearing w/ 35s on stock rubi wheels?

ESP... will having the dealer program computer for tire size make the esp warning go away on exit ramps and other sharp turns?

Any feedback is greatly appreciated!
-Aaron
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Old Dec 3, 2010 | 11:37 AM
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Stock gearing will give worse mpg's, worse performance, and may cause more stress to the drivetrain. It is a preference. If you can deal with it, then don't worry about regearing.

The dealer can not program for 35's. They can go to 'stock' 32's. You will need an aftermarket programmer/tuner to set the new tires/speedo. (AEV ProCal, Superchips Flashpaq, etc...)

Is your steering wheel centered? It will be a bit more sensitive after the lift and tires, but an off-center wheel will have the most effect on the esp issues you are having.
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Old Dec 3, 2010 | 11:44 AM
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Originally Posted by nthinuf
Stock gearing will give worse mpg's, worse performance, and may cause more stress to the drivetrain. It is a preference. If you can deal with it, then don't worry about regearing.

The dealer can not program for 35's. They can go to 'stock' 32's. You will need an aftermarket programmer/tuner to set the new tires/speedo. (AEV ProCal, Superchips Flashpaq, etc...)

Is your steering wheel centered? It will be a bit more sensitive after the lift and tires, but an off-center wheel will have the most effect on the esp issues you are having.
Steering wheel is centered. Got an alignment also when tires were installed... not sure if that made any difference with esp
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Old Dec 3, 2010 | 11:50 AM
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'Looking' centered and 'being' centered may be two different things...

You might grab a wrench and double check just to be sure.
http://project-jk.com/jeep-jk-write-...-end-alignment

One good thing about the ProCal mentioned above is a function that tells you when the 'computer' thinks the wheel is centered.

Also as mentioned, the esp will be more finicky after the lift and tires, and coming on while in sharp turns at speed (on-ramps/off-ramps, etc) is a known issue.

Last edited by nthinuf; Dec 3, 2010 at 11:53 AM.
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Old Dec 3, 2010 | 01:12 PM
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awesome thanks for that link. If I go in and start messing with this- will it effect the alignment I just paid for?
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Old Dec 3, 2010 | 01:22 PM
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Nope, not at all.


But, since you asked...

Which components are in the lift?
Coils, shocks, links, rear trackbar bracket?

No cams or adj ca's = no caster correction.
No adj tracbars = no axle re-centering.
Camber is non-adjustable.
Toe-In? Very likely that it did not need to be adjusted.

Sooo, what exactly did you pay them to 'align'??

Quite a bit of change for them to center the steering wheel, huh...


Do you have the before and after specs from the alignment, by chance?

Last edited by nthinuf; Dec 3, 2010 at 01:29 PM.
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Old Dec 3, 2010 | 01:26 PM
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Originally Posted by akholmes
awesome thanks for that link. If I go in and start messing with this- will it effect the alignment I just paid for?
If the esp is already confused, wrenching on your drag link can't make it any worse all you need is a helping hand for two to five minutes. Keep adjusting till it comes out right. I had to loosen tighten and test drive my JK five times before it worked just right.
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Old Dec 3, 2010 | 03:13 PM
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Originally Posted by sa29560
If the esp is already confused, wrenching on your drag link can't make it any worse all you need is a helping hand for two to five minutes. Keep adjusting till it comes out right. I had to loosen tighten and test drive my JK five times before it worked just right.
Awesome. So your ESP totally stopped giving you false readings after this?
Thanks again for all the input.
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Old Dec 3, 2010 | 05:46 PM
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Originally Posted by nthinuf
Nope, not at all.


But, since you asked...

Which components are in the lift?
Coils, shocks, links, rear trackbar bracket?

No cams or adj ca's = no caster correction.
No adj tracbars = no axle re-centering.
Camber is non-adjustable.
Toe-In? Very likely that it did not need to be adjusted.

Sooo, what exactly did you pay them to 'align'??

Quite a bit of change for them to center the steering wheel, huh...


Do you have the before and after specs from the alignment, by chance?
paid $55 for a front end alignment- guy said the left front was off by a degree. I probably got taken...

the lift is coils, shocks, trackbar bracket and swaybar links...
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Old Dec 3, 2010 | 06:01 PM
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Yep, it's a bit of a scam the shops run. Without adjustable components, you are paying them to re-center the steering wheel, which you can do yourself in 5 minutes. Now you know!
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