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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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Tire/lift/regear questions from a new JK owner

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Old Mar 2, 2015 | 05:42 PM
  #1  
citypluscolour's Avatar
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JK Newbie
 
Joined: Mar 2015
Posts: 1
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From: Hopedale, MA
Default Tire/lift/regear questions from a new JK owner

Hi all. First post so go easy!

recently got a 2014 jk sport 2 door. auto transmission.

about to make the upgrade to 35s. I am wondering if there is anything i should know when it comes to a lift and (eventually) regearing. What size/type lift should i aim for? any recommended brands/models? when should I (if at all) regear?

This is my main vehicle, i do small commutes, dont care about gas mileage, would like to stay within reason as far as budget, and look to do minor trail driving but also like pavement comfort.

thanks in advance!
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Old Mar 3, 2015 | 09:24 PM
  #2  
Level 10 Off Road's Avatar
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Joined: Jan 2015
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From: Jacksonville, FL
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Welcome to the Forum!

To run 35's you'll want to be looking at a quality 2.5" - 3" lift. Personally I recommend using one of the premium companies (Rock Krawler, TeraFlex, Synergy, etc), the quality of their components justifies their price. When you go cheap it ends up biting you somewhere farther down the road with sagging springs, bad bushings so on. What you should be looking for is a kit that has at least an adjustable front track bar, adjustable front lower control arms, and provisions for brake lines. With the PentaStar engine, you'll also need a set of exhaust spacers.

Regearing may not be required, depends on which gear set your new JK has. The 3.6 with 3.73's in MA can easily turn the 35's, if you spend a lot of time at higher elevations or climbing rocks you'll definitely want to regear sooner.


Originally Posted by citypluscolour
Hi all. First post so go easy!

recently got a 2014 jk sport 2 door. auto transmission.

about to make the upgrade to 35s. I am wondering if there is anything i should know when it comes to a lift and (eventually) regearing. What size/type lift should i aim for? any recommended brands/models? when should I (if at all) regear?

This is my main vehicle, i do small commutes, dont care about gas mileage, would like to stay within reason as far as budget, and look to do minor trail driving but also like pavement comfort.

thanks in advance!
Reply
Old Mar 4, 2015 | 04:54 AM
  #3  
kenb1023's Avatar
JK Newbie
 
Joined: Feb 2014
Posts: 69
Likes: 0
From: Edgewood, NM
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A 2.5" lift would be good and does not require you to change out your control arms. As you taller then you end up with messed up front end geometry caused by the arc increase of distance between the axle and frame. I have the 2.5" Teraflex spring kit and love it. It and others like it will run you about $700 or so. Shop around for the best deal. It is an easy install and two people can knock it out in an afternoon. Take your time, watch the videos on line and get a feel for it. They help allot. As for re-gearing there are some charts out there to help you decide on the optimal gear ratio. For what your doing and your set up I would recommend 4:10, 4:56 or 4:88 gears. More on the 4:56 since you have a Dana 30 front axle the slightly smaller gear will yield a stronger pinion but the 4:88s are not so bad in a D30. That is one reason I am swapping out my D30 for an aftermarket D44. The 4:10s will get you the most MPG and the 4:88s will get you the most available torque. Now you just need to decide what kind of wheeling you may up doing and get the gear set to match.
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