Skip to Content
Get Free U.S. Shipping When You Spend $500+ on CORE 4X4 Products
Back to Shop

214.16 214.16 USD 251.95

251.95

As low as $159.00/mo with Learn More

More financing options ▸

1–3 day build time + Shipping

Choose Options & Buy →
https://dev.core4x4.com/web/image/product.template/2165/image_1920?unique=edc8f61

Jeep Wrangler JL / JLU 18+ 2pc Cruise Series Rear Upper Adjustable Control Arms

SKU: CRS-J-JL-RU2
Fits: 2018 - Present Jeep Wrangler JL / JLU Add vehicle

214.16 214.16 USD 251.95

251.95

Starting at $110/mo or 0% APR with . See if you qualify

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

Correct Your Rear Pinion Angle Eliminate Driveline Vibrations

Lifting your Jeep Wrangler JL can create driveline vibrations and excessive wear due to improper pinion angle alignment. Our Cruise Series Rear Upper Control Arms solve this issue by allowing precise pinion angle adjustments, reducing strain on your drivetrain and eliminating unwanted vibrations. Whether you're navigating the trails or cruising on the highway, these arms provide a smoother ride, better alignment, and improved durability over factory components.

What’s Included in the Kit?

  • Pair of Cruise Series Rear Upper Control Arms (CRS-J-JL-RU2)

Key Features and Benefits

  • Corrects Pinion Angle to Reduce Driveline Vibrations – Prevents excessive strain on driveshafts and U-joints, reducing noise and increasing drivetrain longevity.
  • Heavy-Duty Steel Tubing Construction – Built for strength and durability, these arms withstand tough off-road conditions while improving on-road comfort.
  • Adjustability for Lifted Vehicles – Accommodates lifts from 0 to 6 inches, ensuring proper pinion angle correction and precise alignment.
  • Tapered Polyurethane Bushings for a Smoother Ride – Reduces noise, absorbs vibrations, and improves articulation compared to factory rubber bushings.
  • Recommended Pairing for a Complete Rear-End Solution – For full alignment correction and rear axle centering, pair with our Cruise Series Rear Lower Control Arms (CRS-J-JL-RL2).

Two-Stage Powder Coating for Maximum Protection

Every control arm undergoes a two-stage powder coating process to protect against corrosion, rust, and road debris: Zinc Primer Base Coat – Provides a strong anti-corrosion barrier, ensuring durability in extreme conditions. Customizable Top Coat – Available in 10 different colors, allowing you to personalize your Jeep’s look while adding an extra layer of protection.

Made in the USA

Proudly manufactured in Orem, UT, we maintain full control over the production process to deliver top-tier quality and durability in every product.

Optional Hardware Upgrade

These control arms install using factory hardware, but if you're dealing with rusted or stubborn bolts, we offer optional Grade 8 hardware kits for an easier and more secure installation.

In Conclusion

Upgrading to our Cruise Series Rear Upper Control Arms eliminates driveline vibrations, improves pinion angle alignment, and enhances both on-road comfort and off-road durability. Whether you're lifting your Jeep or fine-tuning your rear suspension, these control arms deliver long-lasting performance and drivetrain stability.

Upgrade today and drive with confidence, knowing your rear suspension is dialed in with CORE 4X4's Cruise Series Rear Upper Control Arms!


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
Google

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.
NM
Noah Myers Mar 23, 2024
Google
I contacted these guys on a Saturday through email and needed some control arms by the following weekend, Spence got back with me and told me he would make sure the order got shipped out on Monday, they got busy and wasn’t able to ship the package out so he got back with me that evening and upgraded my shipping for free and shipped out the next day, only because he told me he’d make sure I’d have them by the weekend! This company sticks to their word! The customer service from these guys are unmatched and they will have another lifetime customer here!
MG
Morgan Griffith Mar 25, 2018
Google
I met a couple of the Core 4x4 guys at the Salt Lake Offroad Expo and decided to try them out after noticing one of my control arm bushings was disintegrated. I called to discuss parts on Thursday and I was leaving for a trip on Saturday. These guys built my control arms and had them ready to be picked up Friday, 24 hours later. The parts seem to be great quality and they charged me nothing extra to have them painted. These guys were extremely helpful and without them my trip probably would have been cancelled. looking forward to testing out the arms on my next trip to Moab.
MT
Ma TheMeatLoaf Mar 23, 2024
Google
Their website estimated 2 days to get my parts but actually took 11. No communication to let me know what’s going on. Parts were missing. Some days they answer questions, some they don’t. Didn’t let me know I’d have to alter stock bolts to fit their parts. All around just seems like they don’t care.
AM
Adam M Sep 24, 2025
Google
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👌🏽
GM
George Mar Sep 24, 2025
Google
Great company. Highly satisfied with Core 4x4 customer service. Had some bushings fall apart around 600 miles from home. Called and spoke with Korby Linscomb on Thursday, late in the afternoon. He was able to get my bushings sent across country overnight at a very reasonable rate. Had me up and running by Friday evening with enough time to enjoy the Great Smoky Mountain Jeep Invasion. Thanks Guys!
AL
Andrew LaFave May 27, 2025
Google
I am really please with this company. Great product, i had an issue with a couple of the jonnhy joint bushings, they explained what had caused it and how to fix it. Within hrs of receiving my inquiry, i had heard back with the required info I needed. A couple hrs later problem was fixed and ready for the trail again. They care about heir product and their customers. Thanks crew, you rock
DD
DANIEL DUSSAULT Nov 23, 2025
Google
Very beefy items for a very reasonable price.  Personally have CORE rear track bar and all upper control arms for my 04 Jeep TJ.  Had a slight issue with control arm length and they went above and beyond to swap jam nuts to get me where I needed to be.  Really have to appreciate a company like this.
Loading…
Add vehicle
SHOP BY VEHICLE
Home