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419.96 419.96 USD 524.95

524.95

1–3 day build time + Shipping

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Jeep Wrangler JL / JLU 18+ 4pc Cruise Series Rear Adjustable Control Arm Kit

SKU: CRS-J-JL-RS4
Fits: 2018 - Present Jeep Wrangler JL / JLU Add vehicle

419.96 419.96 USD 524.95

524.95

Build Your Kit

  • Vehicle
    Confirm this matches your vehicle. Use Shop by Vehicle to filter correctly.
  • Brand
  • Color
    Powder coat color for control arms and track bars. Does not affect performance.
  • Hardware
    Choose upgraded hardware if your factory hardware is worn, damaged, or missing.
  • Series
    Cruise: daily driving and light off-road. Camp: overlanding. Crawl: aggressive rock crawling.
  • Note to Core4x4:

Select Color to see price and add to cart.

4–8 hr install Moderate Alignment recommended Lifetime warranty on all non-wear items Made In USA

Complete Rear-End Suspension Control

Upgrade your Jeep Wrangler JL (2018-Present) with the Cruise Series Rear Control Arm Set, engineered to restore alignment, re-center the rear axle, and eliminate driveline vibrations caused by improper pinion angles.

This comprehensive rear-end solution replaces weak factory components with stronger, adjustable control arms, ensuring on-road stability and off-road durability.

What’s Included in the Kit?

  • Cruise Series Rear Upper Control Arms (CRS-J-JL-RU2)
  • Cruise Series Rear Lower Control Arms (CRS-J-JL-RL2)

Key Features and Benefits

  • Heavy-Duty Steel Tubing Construction – Built for maximum strength and durability, ensuring your suspension can handle the toughest conditions.
  • Precision Adjustability – Corrects alignment, re-centers the rear axle, and restores proper pinion angle, accommodating lifts from 0 to 6 inches.
  • Eliminates Driveline Vibrations – Adjustable upper control arms allow for precise pinion angle correction, reducing stress on the driveshaft and eliminating unwanted vibrations.
  • Tapered Polyurethane Bushings – Reduces vibration, improves articulation, and enhances ride quality over standard rubber bushings.
  • Improved Ride Stability – Addresses rear-end instability, excessive movement, and tire wear, ensuring a smoother ride on and off the road.
  • Recommended Pairing for a Complete Suspension Solution – For full rear-end alignment and handling improvements, pair with our Cruise Series Rear Track Bar (CRS-J-JL-RTB1).

Two-Stage Powder Coating for Maximum Protection

To ensure long-lasting durability, every control arm undergoes a two-stage powder coating process: Zinc Primer Base Coat – Prevents rust and corrosion, ensuring protection in harsh environments. Customizable Top Coat – Choose from 10 available colors to match your vehicle’s aesthetics and add a personal touch.

Made in the USA

Proudly manufactured in Orem, UT, our Cruise Series Rear Control Arm Set is built with the highest standards of American craftsmanship, ensuring consistent, reliable performance in all driving conditions.

Optional Hardware Upgrade

  • Our Cruise Series Rear Control Arm Set is designed for easy installation using factory hardware.
  • However, for those dealing with rusted or stubborn bolts, we offer optional Grade 8 hardware kits, available separately to ensure a secure and hassle-free installation.

In Conclusion

Choosing the Cruise Series Rear Control Arm Set means investing in a stronger, more responsive suspension that eliminates alignment issues, eliminates driveline vibrations, and enhances overall performance.

Whether you're tackling rugged trails or daily commuting, these control arms deliver the strength and adjustability your Jeep JL needs.

Upgrade today and experience better ride stability, reduced tire wear, and a vibration-free driving experience with CORE 4X4’s Cruise Series Rear Control Arm Set!


Make Model Submodel Years
Jeep Wrangler 2018 - Present

Each rebuild kit includes all necessary components to replace and restore wearable parts.

Vehicle Jeep Wrangler JL / JLU (18–Present)
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

See It Installed

Install videos and build guides on our YouTube channel.

Watch more installs on YouTube
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Reviews from Google

See all on Google
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.
CL
Cade Leith Mar 23, 2024
Google
Have full upper/lower CA set on both front and rear axles on a 96 ZJ. These are the rubber bushing sets not joint sets. I have beat the hell out it in the Nevada desert for 2 years and has been great. I don’t go fast but I do articulate suspension a lot. Super solid and haven’t any issues. Just inspected the entire set recently due to some banging under it. Turns out the banging is lower rear shock bushings. Inspected each CA along the way nothing. Aside from dirt and obviously winter roads and what not still in excellent condition, bushings are solid like the day they were installed. I’ll add that I’m about tapped on a short arm at 4.25(less with settle) so the front CA’s get beat on just from that, still they’re like new. Paint is great condition, this set is red. I would definitely buy again. Another plus for me, Utah isn’t local necessarily, but it’s nice to support businesses closer to me.
VK
Victor Keele Sep 24, 2025
Google
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.
JJ
Jason Jukich Jul 26, 2025
Google
Fast shipping, excellent communication, and awesome products
Z
Zion Sep 24, 2025
Google
Every product I have received from them has been nothing short of fantastic. Korby in Customer service went above and beyond to help me fix my own mistake. I cannot reccomend them enough.
N
Nick Sep 24, 2025
Google
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!!!!
RT
Ruby Timm Apr 27, 2025
Google
Bought a new 2019 Ram 1500. Had bad rear wheel hop since new, got all four core 4x4 control arms and it fixed the issue. Thanks
RH
Rex Hodges Jun 26, 2025
Google
After ordering an upper and lower adjustable control arm kit manufactured by CORE 4X4 from a jeep parts distributor who's intials are E.T., they came with 3 of the threaded ends missing. After over 2 months of phone calls and emails to this E.T. company nothing was resolved. I finally decided to call CORE 4X4 myself and tell them my dilemma. I spoke with a very personable and professional gentleman named Korby, who is one of CORE 4X4's representatives, after a brief discussion of what I went thru he simply asked me for a picture and some measurements and the items I was missing and asked if I could cover ONLY the cost of shipping and I had my missing parts in exactly 1 weeks time. This company not only builds all it's parts in the U.S.A., they stand behind their products with great customer service and life time warranty. My experience with this company and their Rep Korby was fantastic. I would definitely recommend CORE 4X4 to anyone who needs parts for any 4x4 projects. You just can't beat their quality and service. Rex Hodges Valparaiso, Indiana
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