RockJock's High Steer Knuckles for JK Wrangler and Unlimited vehicles are a game changer! These 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. For use on factory axles or axles that retain factory inner C-knuckles, new high knuckles are intended for use with RockJock's other high steer components, to give you a package that provides everything necessary to accommodate the higher steering location, adjust all geometry points and allow you to easily install a hydraulic assist steering ram, or to reinstall a stabilizer shock! Knuckles are manufactured to greater than OEM standards in every way. Features include premium iron castings, gloss black finish and precise machining for a component that installs just like factory. Additionally, provided are extra threaded steering stop bolt holes ahead of the axle to allow for a second set of stops to be added, giving you firm steering lock stops on both wheels at all times, easing strain on other components. For best results, it is highly recommended that these knuckles be used in conjunction with one of RockJock's knuckle kits that include all of the other components to make this installation easy. Their RJ-430000-101 kit includes a forged, high articulation Drag Link, a 42mm chromoly Tie Rod, a JL/JT Trac Bar as well as the bracket and clamp kits to allow you to install a hydraulic assist steering ram. They also offer their RJ-430001-101 and RJ-430001-103 kits that include the same Drag Link and Tie Rod, as well as the bracket and clamp kits to allow you to reinstall your steering stabilizer shock at a much higher, protected height. Kits that retain the steering stabilizer shock are available with or without their longer RJ-9120FJLF forged, organically shaped JL/JT front trac bar (for higher articluation). Use of their 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 |
See It Installed
Install videos and build guides on our YouTube channel.
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132 reviews
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Ajay Paynter
Mar 4, 2026
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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.
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Ryan Colligan
Mar 4, 2026
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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.
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Marcus Torres
Jan 15, 2026
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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.
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Mike T
Nov 23, 2025
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Korby and the rest of the team at Core 4x4 know there stuff and answered my question in a timely manner. They even were able to quick ship a re-build kit for me so I could get my truck back on the road- Thanks!
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Christopher Dami
Jun 26, 2025
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2022 I ordered a 2023 Jeep Wrangler Rubicon in High Velocity yellow. Without any hesitation I knew I was going with Core 4x4’s 16pc Camp series suspension, powder coated in yellow. Compliments were a given from any and everyone that looked under my jeep. So beefy, I may have left some yellow paint on the rocks from Maine to Florida, but no bends or breaks. Customer service has been perfect each and every time I have needed something. Their warranty is top notch! Their communication is also wonderful. Might upgrade to the Crawl Series control arms where the Johnny joints are on both sides. Great all around company and a great team to troubleshoot your issue and come to a conclusion. Nothing bad to say about this company. Just love this suspension.
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Gary Haag
Aug 25, 2025
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Ordered a set of Core 4x4 control arms for my 2006 Jeep TJ. These are some heavy duty quality control arms. Can't wait to get them installed. Great customer service too!
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Dean Tk421
Feb 21, 2026
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I purchased the Jeep WJ control arms Camp series over a year ago. Very pleased and impressed. Easy installation and solid build. Bracket broke for rear upper control arm, they redesigned it to be more robust and sent me a new one with hardware, honoring their guarantee!
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James Griffin
Jul 26, 2025
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Customer service is top notch. They answered all of my questions and got me my tracking number for my packages. I just received both of them and the quality is next level. You guys are truly awesome.
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Jon Stempien
May 27, 2025
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Big thanks to Corby at core 4 x 4 outstanding customer service I like to thank them or 4 x 4 for helping me Well-made product in the United States recommend core 4 x 4 for all jeep Owners that like the four wheel
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Matt
Mar 23, 2024
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The best products on the market. 95% of my xj is core 4x4 products