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RockJock JK High Steer Knuckle Kit (for Stabilizer Shock, JL/JT Trac Bar)

SKU: RJ-430001-103
Fits: 2007 - 2018 Jeep Wrangler JK / JKU Add vehicle

2,304.00 2304.0 USD 2,304.00

2,304.00

Not Available For Sale

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Lifetime warranty Made in USA

RockJock's Heavy Duty High Steer Knuckle Kit for JK Wrangler and Unlimited vehicles provides everything needed to do the job! The components in this kit are specifically engineered to modernize your JK's steering and trac bar geometry to the improved specs. of a JL/JT, dramatically improving drivability as well as off-road performance. The new knuckles raise both the tie rod and drag link 2 3/4 in. as well as pushing the tie rod outward, away from the axle slightly, allowing for tighter (JL/JT) steering angle over that of stock JK and 1 ton axles. Currectlync steering that is included in this kit features a forged, organically shaped drag link for maximum up-travel and rigidity and a 42mm tie rod. All steering rod ends are forged steel and comparable to those found on modern 1-ton trucks. The included forged, organically shaped JL/JT trac bar's longer length pushes the trac bar adjuster joint outboard of the frame rail providing an additional 5/8 in. of up-travel! RockJock's fully integrated trac bar relocation and steering stabilizer mounting bracket raises your trac bar mounting point 2 in. and corrects it's geometry to prevent bump steer, as well as providing you with a dramatically raised mounting point for a JL/JT spec. steering stabilizer shock (allows for more steering radius), to correct it's geometry and protect it from rocks. A fabricated steel tie rod clamp installs to provide and easy hook-up point for the other end of your shock. All other factory outer components are retained with the new knuckles including outer axles, unit bearings, dust shields and brakes. The use of RockJock's RJ-107101-101 adjustable front bump stop kit is strongly encouraged to allow for maximum up-travel, as engineered.

Make Model Submodel Years
Jeep Wrangler 2007 - 2018

Brand RockJock

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Reviews from Google

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5.0
132 reviews
5
97%
4
2%
3
0%
2
1%
1
0%
AP
Ajay Paynter Mar 4, 2026
Google
Great company, who worked with me on shipping parts to arrive in time for a show. When I explained my concern they went above and beyond to make it happen. Quality of the parts is top notch.
RC
Ryan Colligan Mar 4, 2026
Google
I have nothing but good things to say about Core 4x4. I have the crawler series on my JKU and we take it all over the place. These parts handle everything we throw at them.
MT
Marcus Torres Jan 15, 2026
Google
Best control arms I have installed on any of my builds. After running every major manufacturer, Core 4x4 is on par or better than all the high-end companies at a fraction of the cost. Lifetime warranty is the cherry on top.
CT
Canon TeSelle Jun 26, 2025
Google
Great Experience. I wanted to make changes to my order and Korby was more than willing to work with me to get everything corrected. Hope to deal with these guys again in the future.
MM
MIKE (Mike the Mechanic) Jul 26, 2025
Google
Amazing company and customer service!!!! I messed up on my order and the fixed it immediately. Would definitely recommend them. Can't wait to hit the trails with their product.
EA
Eric Ahonen Mar 24, 2021
Google
Awesome control arms! My mechanic said “ your Jeep is pretty much bulletproof now.” And I just got the tier 1 arms! The people at the core 4x4 shop were really nice too. They were running behind on shipping, (which is understandable) so I decided to go pick it up because it was only an hour drive. They gave me a free $60 hardware kit for the inconvenience. Thanks core 4x4! You guys are awesome!!
RM
R2d2 Movi78 Feb 21, 2026
Google
I’m extremely impressed with Core 4x4. The quality of their parts is outstanding — everything feels solid, well‑built, and engineered with real attention to detail. Shipping was fast and everything arrived perfectly packaged. Their customer service is just as good as their products: responsive, helpful, and genuinely committed to making sure you get exactly what you need. Overall, a top‑tier experience. I’ll definitely be buying from them again. Specially thank you Mr. Linscomb from Core 4x4. Arturo M.
AH
Abbey Hiett Mar 25, 2019
Google
Company finally made things right
PG
Paul Griffin Feb 21, 2026
Google
Great long arm kit with everything else I needed as well! They worked with me to ensure that I was getting an upgraded components kit just like I wanted. Fast shipping with some of the best packaging that I have ever seen. Nothing was scratched or missing and this kit is even more impressive than the videos or website can show. Powder coating looks great with no issues. I would highly recommend CORE 4x4 to anyone looking for a great quality kit.
JO
Jaime Overmyer Nov 23, 2025
Google
Korby was extremely helpful in helping me find the right part for my truck. He was kind, knowledgeable, and patient while I asked a million questions. He also went out of his way to find the right shipping option for me since it’s tricky where I live. I’m looking forward to getting the parts so I can fix my truck and go adventuring again soon!
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