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
Warranty facts, not marketing language.
vs. MetalCloak
Their “lifetime” language refers to their service model. Actual parts warranty: 1 year. Ours: lifetime.
vs. Teraflex
Skip a maintenance interval? Their warranty voids. Ours doesn’t.
vs. Clayton Off Road
Clayton warrants their Johnny Joints for 90 days. We cover ours for life.
Upgrade Your Rear Suspension for Maximum Performance
Enhance your Jeep Wrangler JK's handling, durability, and ride quality with the Cruise Series Rear Control Arm Set. Designed to provide a significant improvement over factory parts, this set includes both rear upper and rear lower control arms to optimize axle alignment, improve suspension geometry, and reduce unnecessary wear on suspension components.
Whether you're tackling off-road trails or enjoying a smooth highway ride, these control arms offer unmatched strength and flexibility.
What’s Included in the Kit?
- Pair of Cruise Series Rear Upper Control Arms (CRS-J-JK-RU2)
- Pair of Cruise Series Rear Lower Control Arms (CRS-J-JK-RL2)
Key Features and Benefits
- Heavy-Duty Steel Tubing Construction – Provides superior strength and durability compared to factory control arms.
- Tapered Polyurethane Bushings – Reduces road noise, enhances responsiveness, and improves ride quality over standard rubber bushings.
- Corrects Pinion Angle Re-centers Rear Axle – Adjustability allows for pinion angle correction, eliminating driveline vibrations and ensuring proper suspension geometry.
- Adjustable for Lifted Vehicles – Accommodates lifts from 0 to 6 inches, ensuring proper alignment and handling for various lift setups.
- Complete Rear-End Suspension Solution – When paired with our Cruise Series Front Control Arm Set (CRS-J-JK-FS4), this kit provides full suspension adjustability, improving drivability, eliminating wandering, and correcting alignment issues. For lifts beyond 6 inches, contact us for custom solutions.
Durable Two-Stage Powder Coating
Our control arms undergo a two-stage powder coating process to maximize corrosion resistance and durability: Zinc primer base coat – Protects against rust and harsh environmental conditions. Durable top coat – Available in 10 color options to personalize your suspension components.
Proudly Made in the USA
Manufactured in Orem, UT, the Cruise Series Rear Control Arm Set is built to the highest American standards, ensuring quality, reliability, and performance.
Effortless Installation
- Designed for easy bolt-on installation, this control arm set uses factory hardware.
- If dealing with rusted or stubborn bolts, we offer optional Grade 8 hardware kits separately for a hassle-free setup.
In Conclusion
The Cruise Series Rear Control Arm Set is the ultimate upgrade for Jeep Wrangler JK owners looking to correct alignment issues, improve handling, and increase suspension durability.
When paired with our Front Control Arm Set, this complete solution eliminates wandering, restores proper suspension geometry, and enhances both on-road and off-road performance.
Upgrade today and take control of your Jeep’s suspension!
| Make | Model | Submodel | Years |
|---|---|---|---|
| Jeep | Wrangler | 2007 - 2018 |
Each rebuild kit includes all necessary components to replace and restore wearable parts.
Master Rebuild kit for CRS-J-JK-RS4
$ 120.00
| Vehicle | Jeep Wrangler JK / JKU (07–18) |
| Brand | CORE 4X4 |
| Color | Black or Blue or Charcoal or Green or LightGreen or Orange or Purple or Red or White or Yellow or Custom Color - Other than what is listed above. Extra charge varies. We will reach out after order is placed. |
| Hardware | No Hardware or Complete Kit |
| Series | Cruise Series |
Select your lift size in Step 1 — the kit ships with the correct geometry for that height. If you’re running a non-standard setup, call us before ordering and we’ll confirm compatibility.
Death wobble is a geometry problem, not just worn parts. Cruise Series corrects caster angle and eliminates the flex points that let shimmy start. Replacing one part at a time delays the fix — this replaces the geometry.
Yes, if you’ve done a lift kit before. Full-day project. Watch the complete JT install walkthrough on our YouTube channel — most owners wrap it in a day. Any off-road shop can run it if you’d rather have it done.
Any non-wear component fails — we replace it. No mileage cap. No maintenance intervals to track. No fine print about voiding if you miss a service. Lifetime means lifetime.
Teraflex’s lifetime warranty voids if you miss a maintenance interval. MetalCloak’s actual parts warranty is 12 months — their “lifetime” language refers to their service program. No conditions here.
See It Installed
Install videos and build guides on our YouTube channel.
Watch more installs on YouTube
Reviews from Google
5.0
★
★
★
★
★
132 reviews
N
Nick
Sep 24, 2025
★
★
★
★
★
I have a 2016 RAM 1500 Crew Cab and I replaced the rear upper and lower control arms also the pan hard track bar and also the sway bar and links for the rear with all I had the articulating bushings. The vehicle now has no body role. They are absolutely incredible if you get the control arms you gotta get the CORE 4 x 4sway bar end links don’t don’t try and be cheap and get Moog or something else you got to get articulating bushings get the core 4 x 4 ones they are the best. My truck drives now through the canyons like a BMW. I have Fox high-performance shocks on there as well with all the CORE 4 x 4 suspension parts and they are amazing. Well worth the money I would highly recommend anybody thinking about CORE 4 x 4 go with CORE 4X4 and if you can go with their articulating bushings, they’re unbelievable drives better now than my Escalades. Well planted no body role and smooth on the Highway unbelievable the difference they all made!!
THANKS AGAIN CORE 4x4!!!!
EG
Erica Grissom
May 27, 2025
★
★
★
★
★
First off, I wish I knew about them sooner. The customer service is top tier. The response time is about 30 min no waiting 1-3 days to get a response. The parts are heavy-duty and look amazing. The packaging is perfect, I can't wait to hit some trails. Thanks Core4x4
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.
AM
Adam M
Sep 24, 2025
★
★
★
★
★
First time buying from Korby @ Core 4x4 and it’s being nothing short of a great experience. I bought the non adjustable Trail kit for my 5th Gen Ram 1500 with a 2” lift. The welds look great, nice powder coat finish and quality bushing. Had some trouble fitting the grease nipples due to the powder coating but a thread tap would fix that. They fit easily and perform great. I felt the improvement straight away. No more wheel hop on hard acceleration which was my main reason for the purchase.
I was missing some smaller bushings needed for the 5th Gen and Korby’s custom service was on point, with responsive emails and mailing out the missing parts straight away. Very happy with their products and customer service. Highly recommended company👌🏽
OK
oleg k
Nov 23, 2025
★
★
★
★
★
I recently ordered a set of control arms from Core 4x4, and the entire experience was absolutely top-notch from start to finish. The ordering process was smooth, the parts arrived quickly, and the control arms themselves are extremely high quality—solid construction, great finish, and clearly built to last.
I also want to give a special shout-out to Korby, the guy I spoke with during the process. His customer service was amazing. He went above and beyond to make sure I got exactly what I needed, answered all my questions, and made the whole experience stress-free. You don’t see service like that very often these days.
If you’re looking for high-quality suspension components backed by truly exceptional customer service, I highly recommend Core 4x4. I’ll definitely be buying from them again.
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!!
RG
Robert Van Gorder
Apr 27, 2025
★
★
★
★
★
Amazing service. Bought a track bar through Americantrucks.com and they sent it with the wrong size bushing sleeve. Korby at Core 4x4 was quick to get me the correct size and very responsive. Will definitely be using more of their stuff.
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.
RM
R2d2 Movi78
Feb 21, 2026
★
★
★
★
★
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.
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.
Suggested Products
Accessories & Add-ons
8pc Kit
Jeep Wrangler JK / JKU 07-18 8pc Cruise Series Adjustable Control Arm Kit
$ 892.45
Rear Lower Control Arms
Jeep Wrangler JK / JKU 07-18 2pc Cruise Series Rear Lower Adjustable Control Arms
$ 251.95
Rear Upper Control Arms
Jeep Wrangler JK / JKU 07-18 2pc Cruise Series Rear Upper Adjustable Control Arms
$ 251.95
Your Dynamic Snippet will be displayed here...
This message is displayed because youy did not provide both a filter and a template to use.
Specifications
| Color | Black, Blue, Charcoal, Green, LightGreen, Orange, Purple, Red, White, Yellow, Custom Color - Other than what is listed above. Extra charge varies. We will reach out after order is placed. |
| Hardware | No Hardware, Complete Kit |
| Vehicle | Jeep Wrangler JK / JKU (07–18) |
| Brand | CORE 4X4 |
| Series | Cruise Series |
| Note to Core4x4: | - |
| Tags | |
|---|---|
| Tags | |
