Made in USA
Orem, Utah
Lifetime Guarantee
Unconditional
10 Colors
In-house powder coat
Fully Adjustable
0-6" of lift
3 X-Series Options
Only Core 4x4
This heavy duty and light weight truss system is designed to take serious abuse and reinforce your front High Pinion 30 XJ axle. The 1/4 inch thick truss top and 10 ga. gusseting incorporates a unique design to strengthen both axle tubes, not just the long tube. The precision cut and formed components of this setup ensure a hassle-free installation. Not only is this just a truss, but you also get a Complete Polyurethane Bushing Replacement For your upper control arms, or you can even upgrade to Currie Johnny Joints.
Features include:
- Sold as Each
- Upper Control Arm Options: Currie Johnny Joints
- 1/4 inch and 10 gauge (.130 inch) mild steel.
- Precision CNC cut and bent for great fitment.
- Truss is low profile to allow clearance above the axle.
- Truss spans length of long side and short side.
- Truss is reinforced using interlocked 10 gauge thick gussets for maximum strength and easy assembly.
- Overall low profile design means your axle is stronger, sleeker, easier to fit into any vehicle, and less likely to interfere with vehicle components.
- This Kit requires general welding and fabrication skills including welding to the cast center section. Welding should only be done by a competent welder.
- Artec Industries implies no guarantees or warranties and is not liable for improper installation.
- Some grinding and fitment may be required when installing this Kit. Every axle varies slightly and some fabrication may be required.
- In rare and extreme cases, the truss may come into contact with oil pan.
- Prior to operating the vehicle, remove the coil springs, cycle the suspension including full compression of both sides simultaneously and add bump stop extensions to prevent damage to oil pan.
Truss ONLY - No bushings/joints/keyed tabs included. Key hole slots on top of truss where keyed tabs would go must be filled with weld. Use this only if you aren't connecting the passenger side UCA or are reusing the factory bracket (see 4th image for details). Daystar Bushings - Includes bushing, inner sleeve, and thrust washer for Driver side and bushing, weldable outer sleeve, inner sleeve, and two keyed tabs for Passenger side. RockJock Johnny Joints - Includes 2.0" Press-in machined Johnny Joint (CE-9112M), 2.0" weldable Johnny Joint (CE-9112), and two keyed tabs for Passenger side. Both joints include greaseable bolts.
| Vehicle | Jeep Wrangler TJ (97–06) or Jeep Cherokee XJ (84–01) or Jeep Comanche MJ (86–92) or Jeep Grand Cherokee ZJ (93–98) |
| Brand | Artec |
| Truss Upgrade | Truss Only-No tabs or bushings/joints or Daystar Bushings or RJ Johnny Joints |
| Placement on Vehicle | Front |
| Mounting Style | Weld-On |
Reviews of Core 4x4
5.0
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132 reviews
AP
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.
CL
Colten Lockwood
Mar 25, 2019
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Recieved warrenty exchanges for my control arms last night couldnt be happier!!! Lets talk about the arms tho! Great quality arms in multiple styles and colors!!! I purchased the teir 3 short arns for my 98 xj. I can say that they setoff nicely so my 35 inch tires do not rub! As long as you can get a photo or video of broken hardware core will take care of you. The body of the arm is bulletproof. However make sure to maintain and grease the joints regularly as with any greaseable joint and they shouldkast forever. I had a few problems arise a year after purchase and after some troubleshooting spence was able to help get me the correct parts to get back on the road. I recommend this setup to any and all jeepers looking to get away from the stock arm setup. Alltogether i am Very happy with the performace of my control arms!!!! Mechanic and bodyman of 12 years and my first choice for quality control arms!!
NP
Norb Pranger
Oct 24, 2025
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Not sure where to start, Products or Service or Warranty.
Products: I found Core4x4 through a very respected YouTuber in the Jeeping community. I purchased an entire set of Core4x4 Control Arms three years ago and have beat the daylights out of them and they are still in great condition. Now, I purchased another Jeep, this time for my daughter and bought yet another set of Control Arms because I know that these things can take a beating and stand up to it. I plan on replacing more parts on this TJ and my JL and will continue to buy from Core4x4.
Service: This isn't some huge name conglomerate that treats you like you're just another customer. They are quick with responses and will always make things right should something be a problem. Oh and the quickness in which they ship their products is unmatched. I bought these CAs for my TJ on Thursday, I received them on Monday. Most other manufacturers will tell you weeks, they had them to me in 2 shipping days.
Warranty: Seriously, a lifetime warranty? Yes please. Nothing more to say.
I can't say enough about how great of a company this is. I've even spoken to the owner through email a few years back on some questions that I had. Support small American built businesses.
P.S. Core 4x4, feel free to make me an ambassador and send me some swag :) .
K
Korosunagi
Jul 26, 2025
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I broke a grease fitting off in my end link. I thought I was going to have to buy a new one. Reached out to Core 4x4 and wham! bam! They fixed it and sent it back with 2 day shipping. Got it a day early even. If they couldn't fix it they were going to send me a new one. Now that's customer service! They are now a permanent part of my garage.
Thank you Core 4x4!
JJ
JT JT
Dec 23, 2025
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We have all shopped places where the person on the phone makes you feel like they don't have the time to talk to you the customer or answer your questions. I can tell you first hand that's not Core 4x4. They have the best customer service I have seen so far. They have taken the time to respond to all of my questions in a very prompt and professional manner, taking the time to answer each and every question I have had. Lets put it this way if Core 4x4 sells a product I am wanting for my truck I will buy it from them, I highly recommend Core 4x4.
RM
R2d2 Movi78
Feb 21, 2026
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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.
JC
John Cutler
Oct 24, 2025
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In September 2025, we visited CORE 4x4 in Orem, Utah. CORE 4x4 makes control arms and other similar parts that stiffen the suspension of an off-road 4x4 vehicles, so that the off-road vehicles can travel on more rugged terrain. CORE 4x4 used to share this building with another business, and since this other business has moved elsewhere, CORE 4x4 will continue to expand and grow their business. Good for CORE 4x4 to be a growing company and to expand into the vacant part of the building.
DA
Dastrup Auto
Mar 25, 2019
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I have bought a bunch of sets of arms, track bars and even had custom work done by Core 4x4. Just yesterday, Spence and Cam delivered an awesome cross member they designed and built for me! All of their products have been exceptional! I have personally seen their progression with design changes/updates. They truly take pride in their work and products. Quality control is second to none! They’ve also helped me diagnose issues with different jeeps I’ve had, as well as Dodge/Rams. These guys know their stuff! Really! I trust them whole heartedly and absolutely love their products/quality of work! I’ve referred many people, and will always continue to do so. Keep up the good work Core4x4!
VK
Victor Keele
Sep 24, 2025
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Great customer service. I got my front upper and lower control arms and hardware on Friday afternoon. It didn’t come with instructions so I called Core 4X4 and they immediately e mailed me the instructions. Also, the kit I got had the spacers missing so I called. It was late Friday by thus time but they took care of the issue first thing Monday morning and I got the spacers on Tuesday. Great company.
MB
Melody Baker
Jan 22, 2026
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I ordered a part for my 03 Jeep TJ and all I can say is wow! Korby at Core 4x4 is a total rockstar!! There was a glitch with my payment and within minutes, Korby reached out to me to get it fixed, then sent my receipt with the tracking number. I lost the number and reached out to him during the Holidays and got a rapid response with the number again. I can’t say enough about the customer service and the quality of parts. Thank you!!
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Specifications
| Vehicle | Jeep Wrangler TJ (97–06), Jeep Cherokee XJ (84–01), Jeep Comanche MJ (86–92), Jeep Grand Cherokee ZJ (93–98) |
| Truss Upgrade | Truss Only-No tabs or bushings/joints, Daystar Bushings, RJ Johnny Joints |
| Brand | Artec |
