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Adjustable
Control Arms

Jeep, Wrangler JL/JLU, 2018, 2023

Rear
Upper
SKU: CRL-J-JL-RU2

$439.95

Add hardware if you would like to replace the factory nuts and bolts.

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Crawl Series Rear Upper Control Arms Compatible with Jeep Wrangler JL (CRL-J-JL-RU2)

Superior Off-road Performance

Enhance your off-road experience with our Crawl Series Rear Upper Control Arms. Specifically designed to be compatible with Jeep Wrangler JL model years 2018-Present, these control arms provide unrivaled flexibility and superior on-road manners, presenting a clear advantage over competitor aftermarket offerings.

Engineered for Durability

The Crawl Series Rear Upper Control Arms are crafted with 1.5″ OD DOM Tubing and a .313” wall thickness, surpassing our competitors in terms of durability and performance. They feature the original Johnny Joints from Rock Jock 4×4 at both ends, ensuring the highest quality performance.

Optimal Adjustability

Experience the advantage of adjustability. Our Rear Upper Control Arms are designed for easy adjustment of your pinion angle and can accommodate lifts from 0 to 6 inches. Designed to enable precise alignment correction, help re-center your rear axle, and enhance ride quality. For vehicles with lifts beyond 6 inches, please contact us for additional options and assistance.

Two-Stage Powder Coating

All of our control arms undergo a two-stage powder coating process for maximum durability and corrosion resistance. We start with a zinc primer base followed by a durable top coat in your choice of color, offering a resilient and customized finish.

Proudly American

Our Crawl Series represents American craftsmanship at its finest. By choosing our products, you are supporting American-made products and benefiting from our high-quality manufacturing standards.

Easy Installation

Our Rear Upper Control Arms can be conveniently installed using factory hardware. For those dealing with rusted or stubborn bolts, we offer optional new Grade 8 hardware kits, available separately, to ensure a smooth installation process.

Key Features

  • Superior off-road performance and on-road manners
  • Precise adjustability to accommodate lifts from 0 to 6 inches
  • Original Johnny Joints for superior performance and longevity

Why Choose Crawl Series Rear Upper Control Arms?

  • Unrivaled Performance: These control arms enhance your vehicle’s off-road flexibility and maintain good road manners. They also help to regain your vehicle’s alignment and help re-center the rear axle.
  • High-quality Construction: Made with 1.5″ OD DOM Tubing and a .313” wall thickness, our Rear Upper Control Arms provide excellent strength and durability.
  • Two-Stage Powder Coating: Our control arms are powder coated with a zinc primer for maximum durability and corrosion resistance, followed by a durable top coat in your choice of color.
  • Proudly American: By choosing our Crawl Series, you are supporting American-made products and benefiting from our high-quality manufacturing standards.

In Conclusion

Choosing the Crawl Series Rear Upper Control Arms means you’re opting for ultimate off-road flexibility and on-road manners. Upgrade today and enjoy the benefits of precise alignment and superior performance, thanks to the innovative design and high-quality construction of our control arms.

SeriesCrawl
Color OptionsCharcoal, Orange, Yellow, Blue, Green, Light Green, Red, Purple, Black, White
Built With1.5" OD 5/16" Wall DOM tubing
Grease FittingsIncluded
Lift Range0" — 6", 6"+
Fixed EndWelded Rock Jock Johnny Joint
Thread Size1" x 14 TPI
Thread Length3.25"

OEM Interchange Numbers

68247740AA, 52060015AC, 52060015AD, 52060015AE, 52060015AF, 68460069AA
Make Model Year
Jeep Wrangler JL/JLU 2018
Jeep Wrangler JL/JLU 2019
Jeep Wrangler JL/JLU 2020
Jeep Wrangler JL/JLU 2021
Jeep Wrangler JL/JLU 2022
Jeep Wrangler JL/JLU 2023

FAQs

Our product lines are designed to offer the absolute most value for your budget. Not every build is the same and we understand that. Our series differ mostly in the components used in the construction of the parts. Our Cruise and Town Series utilizes our high grade flex poly bushings at both ends of the arm, this has proven to be a smooth riding easy to maintain and replace bushing that we absolutely love. Our Camp and Trail Series utilizes 5/16″ wall DOM tubing and incorporates a flexible Johnny Joint at the adjusting end, this series has been our most popular series for all around use, great for daily drivers that want to tear up the trails as well. Our Crawl, Tow, and Track Series utilizes the same 5/16″ wall DOM tubing, but features Johnny Joints at both ends. This series gives you the absolute most out of your suspension. This is great for heavy towing/hauling and extreme off-roading. Also, if the component is straight in these series we will machine these left and right hand threaded for easy adjustment on the vehicle!

We are constantly expanding our product lines to include complete kits, if you don’t see something on the site for your vehicle, reach out to our sales team and we can put something together for you.

Our two main sizes of jam nuts require an1-1/2″ wrench or an 1-5/8″ wrench. Generally speaking the 1-5/8″ jam nuts are used on our lower control arms and the 1-1/2″ jam nuts on our upper control arms and track bars. There are some exceptions, but we do offer a crow’s foot that has both sizes.

Any non-synthetic moly based grease is safe on our products, avoid lithium greases and anything red as this can prematurely deteriorate the internal components of the Johnny Joints and bushings used on our parts.

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If you manage to break It,
we'll replace it.

As the founder of Core 4×4, I stand behind our unwavering commitment to delivering top-tier, American-made products that don’t break the bank. We take immense pride in our craftsmanship, sourcing materials domestically to ensure the highest quality possible. Our team goes the extra mile to rigorously test and refine every product, ensuring it not only meets but exceeds industry standards. When you choose us, you’re choosing durability, reliability, and affordability. That’s not just a business model— it’s a promise, from our family to yours.

Sincerely,
Spence Schramm
Founder, Core 4×4