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Over vs Under

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Old 12-17-2009, 08:01 PM
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Question Over vs Under

Over Steering Knuckle vs Under Steering Knuckle. The only difference I know is over is more involved when installing. This will be for DD. JCR is company I found parts at for price I liked. Pros & Cons
Old 12-17-2009, 09:04 PM
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OTK requires drilling to a larger size and either running flipserts or reaming for a larger TRE.

OTK tie-rods can be too large in Diameter and limit turning your turning radius due to interference from the sway bar mounts. These can be ground slightly or in some cases relocated.

OTK tie rods on an inverted Y steering system can and will lead to bump steer do the change in steering geometry. The drag link will no longer be parallel with the track bar. An over the axle track bar mount can be used to elevate the track bar. Take a look at the following pic (my son's XJ) for an example of a parallel track bar and drag link.

Old 12-17-2009, 09:10 PM
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Hey frank would you recommend doing the Over Knuckle? If not what is a good steering set up for the Under? I myself was looking into a JCR Over.
Old 12-17-2009, 09:12 PM
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and a pic with OTK and stock tracbar axle mount. i will be making a new tracbar and axle mount soon. it has bumpsteer, but it wasnt wicked. a plus for OTK is the clearance you gain too.

Old 12-17-2009, 09:17 PM
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Originally Posted by 00XJinPA
Hey frank would you recommend doing the Over Knuckle? If not what is a good steering set up for the Under? I myself was looking into a JCR Over.
If done right OTK is a great option and the same goes for UTK. It really boils down to budget and how/where you wheel. A mud guy doesn't need the same steering as a rock crawlin' guy (or gal).
Old 12-17-2009, 09:26 PM
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frank? did you buy a knuckle for you passanger side so you can bolt your drag link and sutff up to the the same knuckle. how did you do that, i would like to do the exact same. and make beefier steering, with hiems and such. pics????
Old 12-17-2009, 09:31 PM
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Originally Posted by Six-Pack Smile
frank? did you buy a knuckle for you passanger side so you can bolt your drag link and sutff up to the the same knuckle. how did you do that, i would like to do the exact same. and make beefier steering, with hiems and such. pics????
the draglink goes to the pass side tie-rod, not the knuckle.
Old 12-17-2009, 09:35 PM
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Originally Posted by 89eliminator
the draglink goes to the pass side tie-rod, not the knuckle.
my bad, can i just get and explination of how to make something like that, his tie rod ends look hella big.
Old 12-17-2009, 09:50 PM
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Heims suck doggy-doo on a DD/trail rig.
Old 12-17-2009, 10:29 PM
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man i cant get a answer out of nobody on this forum.
Old 12-17-2009, 10:31 PM
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Originally Posted by Six-Pack Smile
man i cant get a answer out of nobody on this forum.


you got 2 answers in this thread. i dunno what TREs Frank is running, but mine are 1-ton chevy TREs.
Old 12-17-2009, 10:36 PM
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thanks sir
Old 12-17-2009, 11:11 PM
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Same on the steering we built for my son's heep.
Old 12-17-2009, 11:22 PM
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Whether or not you go over the knuckle as illustrated here or not depends mainly on two things. How high you are lifted and are you in the rocks. Raising the tie rod is great in areas where there are solid obstacles, like rocks. My opinion for what it is worth is that anyone with a lift over 6" needs some steering solution that raises the drag link and a corresponding track bar relocation. personally, I went with a high steer and over the knuckle tie rod.

You can't see my drag link in this pic, but you can see the tie rod.

Old 12-17-2009, 11:26 PM
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Your bumper is racked......



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