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  1. #1
    New JK Freak
    Join Date
    07-01-2018
    Location
    Pittsburgh, PA
    Posts
    2

    Looking for some insight...

    Hi all! New to this site and looking for some outside opinions.
    I have a 2015 Sahara unlimited. I started with the 2.5 inch TF kit. Running 275/70/18 tires. The ride was super rough and bouncy so I upgraded to quadratic shocks with no major changes. Then upgraded to rock krawler springs with minor improvement. Also have the TF steering stabilizer. Ride is still pretty rough and I'm beyond frustrated. Looking for any and all suggestions to help make my jeep enjoyable to drive! TIA!
    Last edited by bidge24; 07-02-2018 at 07:42 AM.

  2. #2
    MallCrawler Mallicon's Avatar
    Join Date
    09-07-2014
    Location
    NE Ohio
    Posts
    276
    If this is your 1st Jeep they will ride a bit rougher than your average car/truck; however if your lift did not include any control arms or drop brackets it could be that your caster is off. I have seen from experience this can cause the ride to suffer and the Jeep wants to "crash" over even the roughest of bumps. You may want to consider relocation brackets, adjustable arms, or a fixed arm like Teraflex or Synergy (I do have a nice set for sale cheap). If you already have some combination of these you may just need a qualified shop to do an alignment and correct caster.
    2014 JKUS | Lift | Wheels | Tires

  3. #3
    No one special ShutterBug's Avatar
    Join Date
    09-08-2013
    Location
    Mentor, OH
    Posts
    2,782
    If you're not looking to crawl rocks, I would suggest geometry correction brackets to start. This will help with the caster angle of the front axle. However, you may still experience some roughness in the steering wheel.

    Most new Jeep owners don't know how much a lift affects steering geometry. I didn't. When you lift the Jeep, you change the angle of the control arms and the drag link, as it relates to the plane of the road. When that angle is steeper, think about bumps in the road. Rather than the control arm just flexing up and it being absorbed by the springs/shocks, part of that bump now transfers to the control arm and into the body. So you're going to feel it a little more.

    The same is true with the drag link. The drag link should be as parallel with the ground as possible (it never is truly, but mostly). When you lift the Jeep, you make that angle steeper. When you hit a bump, that force not partially transfers up the drag link to the steering box, and then into the steering wheel. This is called bump steer. Some of this can be mitigated with a heavier steering stabilizer, but it is really just masking the issue. Not a lot that can be done about it outside of a drag link flip, but that's not recommended until 3.5" minimum lift.

    Even though the changes in your suspension geometry are minimal, they can create an affect that you can feel. The math doesn't lie.

    My advice, if you're not off roading your Jeep too much, especially rocks, is the geometry correction brackets. They will make a difference. Also, The Steersmarts drag link is an option. It has a built in attenuation to compensate for some bump steer. But it's pricey at over $600.

    2014 Black JK Sport-icon - My "Lil' Mule"
    JCR Offroad | Rock Krawler | Barnes 4WD | Artec | RCV | Ten Factory
    My Build Thread

  4. #4
    New JK Freak
    Join Date
    07-01-2018
    Location
    Pittsburgh, PA
    Posts
    2
    Definitely going to look into the brackets. Thanks!

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