CORE 4X4 X-SERIES RATING SYSTEM
$ 280
"Daily Confidence"— Daily driver, light trails
CORE 4X4 X-SERIES RATING SYSTEM
$ 328
"Weekend Ready"— Weekend warrior, moderate off-road
CORE 4X4 X-SERIES RATING SYSTEM
Compare Series
$ 378
"Trail Domination"— Hardcore builder, competition
$ 280
"Daily Confidence"— Daily driver, light trails
CORE 4X4 X-SERIES RATING SYSTEM
$ 328
"Weekend Ready"— Weekend warrior, moderate off-road
CORE 4X4 X-SERIES RATING SYSTEM
Compare Series
$ 378
"Trail Domination"— Hardcore builder, competition
Not Sure Which X-Series? Compare All Three.
Same American steel. Same warranty. Same quality. Choose by how you drive.
|
|
MOST POPULAR
|
VIEWING NOW
|
|
|---|---|---|---|
| Tagline | "Daily Confidence" | "Weekend Ready" | "Trail Domination" |
| Joint Type | Polyurethane Bushings | Johnny Joint (Single) | Double Johnny Joint |
| Articulation | ~30% | ~65% | ~95% |
| Tubing | 1.625" OD / 3/16" Wall DOM | 1.75" OD / 5/16" Wall DOM | 1.75" OD / 5/16" Wall DOM |
| Price | $280 | $328 | $378 |
| Maintenance | Zero | Periodic grease | Periodic grease |
| Best For | Daily driver, light trails | Weekend warrior, moderate off-road | Hardcore builder, competition |
| Warranty | Lifetime ✓ | Lifetime ✓ | Lifetime ✓ |
Made in USA
Orem, Utah
Lifetime Guarantee
Unconditional
10 Colors
In-house powder coat
Ships in 3 Days
From our UT facility
Fully Adjustable
0-6" of lift
3 X-Series Options
Only Core 4x4
Why Builders Choose Core 4x4
The only aftermarket suspension brand with an X-Series product system
vs. MetalCloak
One price point, no tier options. Core 4x4 Crawl matches their performance at a better price with a better warranty.
vs. Teraflex
Skip a grease interval? Warranty voided. Core 4x4 Cruise requires zero maintenance — and our warranty covers everything.
vs. Clayton / Budget
Cheaper arms exist. But adjustable, American-made, 10 colors, lifetime guarantee, and an upgrade path? Only Core 4x4.
Everything you need to refresh your suspension.
This rebuild kit includes all the essential components needed to replace common wear items and restore performance.
CE-9110RK × 8
CE-9112RK × 2
CE-9112NRK × 8
See It Installed
Install videos and build guides on our YouTube channel.
Watch more installs on YouTube
Reviews from Google
5.0
★
★
★
★
★
132 reviews
AP
Ajay Paynter
Mar 4, 2026
★
★
★
★
★
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
★
★
★
★
★
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
★
★
★
★
★
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.
RH
R and H H
Oct 24, 2025
★
★
★
★
★
Top notch company. Mechanic lost bolts that clamp upper control arms. Korby sent out spare bolts no charge. Best customer service I’ve come across in a long time. Only suspension brand I’ll ever use.
AL
Aaron Lake
Apr 27, 2025
★
★
★
★
★
Korby was a great help with getting me a set of leaf springs for my Cherokee. Great customer service and an awesome product all made in the USA. Proud to support and rock their parts on my vehicle. 👍 …
TD
Tim Davis
Sep 24, 2025
★
★
★
★
★
Customer service is amazing, responds fast and know what they are talking about. Their product looks top of the line.
JG
James Griffin
Jul 26, 2025
★
★
★
★
★
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.
BA
bryan angell
Jun 26, 2025
★
★
★
★
★
First off amazing products. I got a set of adjustable control arms for my XJ and it is so nice to be able to dial in caster and pinion angles. A quick call and I was able to purchase an adjustable track.
MS
Mr. Smith
Nov 23, 2025
★
★
★
★
★
Have yet to get to try them but I bought some upper, and then later , lower control arms for my 03 rubicon. The pricing is very fair, so fair I was hesitant to even purchase. When the product came in I was happily mistaken. These are some beefy units with an incredible warranty! I’m very excited! I went with the “Camp”series as I mostly daily it.
I have trouble with the shipping at times when I ordered but Corby is quick to notice things and help communicate the solution. Looking forward to buying more parts!
CL
Colten Lockwood
Mar 25, 2019
★
★
★
★
★
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!!
