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CORE 4X4 · Suspension SKU: CRL-J-TJLJ-RU2

2pc Kit

Adjustable control arms — rear upper · fits 0–6″+ lift

Jeep Wrangler TJ 97-06 LJ 04-06 2pc Crawl Series Rear Upper Adjustable Control Arms
$383.42 $435.70 Save $52

CRUISE from $152 · CAMP $277 · CRAWL 7075 ALUMINUM $386 · Compare series

$ 383.42 383.42 USD $ 435.70

$ 435.70

Save $ 52.28

Built to order, usually ships in 1–3 days.
Enter ZIP for arrival estimate Delivery date by ZIP
Order by 3:00 PM MT today — we'll start tomorrow
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COLOR Pick yours
100% bolt-on, no welding Made in USA · Orem, Utah You break it, we replace it Joints you rebuild instead of replace
Mounting hardware included
Talk to an Expert: 385-375-2104
Lift Size
What size lift will the parts be used on?
Adjustment Type
Select for easy on-vehicle adjustment. Available for control arms only. Double threaded lower arms will be straight, some trimming may be required to clear front lower shock mount.
1
https://jerdev.core4x4.com/web/image/product.template/2120/image_1920?unique=edc21f3
CORE 4X4 · Suspension

2pc Kit

Jeep Wrangler TJ 97-06 LJ 04-06 2pc Crawl Series Rear Upper Adjustable Control Arms

Adjustable control arms — rear upper · fits 0–6″+ lift

Will this fit your rig?

COLOR Pick yours

Build Your Kit

  • Vehicle
  • Brand
  • Color
  • Series
  • Hardware
  • Lift Size
  • Adjustment Type
  • Note to Core4x4:

$ 383.42 383.42 USD $ 435.70

$ 435.70

Save $ 52.28

Select Color to see price and add to cart.

Mounting hardware included
100% bolt-on, no welding Made in USA · Orem, Utah You break it, we replace it Joints you rebuild instead of replace
Talk to an Expert: 385-375-2104
Built to order, usually ships in 1–3 days.
Enter ZIP for arrival estimate Delivery date by ZIP
Order by 3:00 PM MT today — we'll start tomorrow
See full timeline
Core 4x4 Manufactured Social 15 Promo Eligible

Alignment recommended You break it, we replace it. Made In USA

Made in USA Orem, Utah
You break it, we replace it Warranty on non-wear items
10 Colors In-house powder coat
Fully Adjustable 0-6" of lift
3 X-Series Options Only Core 4x4

Product Details

Make Model Submodel Years
Jeep Wrangler 1997–2006
Jeep Wrangler 2004–2006

  • Vehicle Fitment: Jeep Wrangler TJ LJ 97-06 – Enhances rear suspension stability, refines ride quality, and corrects alignment for lifted applications. Improves articulation while reducing drivetrain stress for smoother performance.

  • CORE Advantage: Allows for precise pinion angle correction, reducing driveline vibrations common in lifted TJ/LJ models. Maximizes axle articulation and ensures superior off-road flexibility with Johnny Joints at both ends.

  • Adjustability: Fully adjustable for 0 to 6-inch lifts, fine-tuning pinion angle and axle centering. The optional Double Adjustable Upgrade allows on-the-vehicle adjustments, making suspension tuning quick and precise.

  • Construction: Built from 1.5" OD 5/16” wall DOM tubing for superior strength and longevity. Features Johnny Joints at both ends for bind-free movement, enhancing flexibility and durability on rugged off-road terrain.

  • Two-Stage Powder Coating: Zinc primer base and top coat available in 10 vibrant colors protect against corrosion and allow for personalized styling of your rig.

  • Warranty and Origin: Proudly manufactured in the United States. You break it, we replace it.

Built With

Rear Upper control arm built with 1.5” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends with 1” x 14 TPI - 2.32” long threads.

Johnny Joints both endsJoints
1.75" OD lowers / 1.50" OD uppersTubing
5/16" DOMWall
Periodic greasingMaintenance

Construction & Materials

Rear Upper control arm built with 1.5” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends with 1” x 14 TPI - 2.32” long threads.

Vehicle Jeep Wrangler TJ (97–06) or Jeep Wrangler LJ (04–06)
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.
Series Crawl Series
Hardware No Hardware or Complete Kit
Lift Size 0" — 6" or 6"+
Adjustment Type Single Threaded or Double Threaded
Placement on Vehicle Rear Upper, Rear
Mounting Style Bolt-On

Superior Off-Road Performance Adjustability

Upgrade your Jeep Wrangler TJ/LJ (1997-2006) with the Crawl Series Rear Upper Control Arms, engineered to provide exceptional articulation, precise alignment, and long-lasting durability. Whether you're navigating rugged off-road trails or cruising on paved roads, these control arms ensure improved stability, ride quality, and axle centering.

Key Features Benefits

  • Extreme Off-Road Articulation – Featuring Johnny Joints at both ends, these control arms allow for unparalleled flexibility, delivering smoother suspension movement and increased durability over rough terrain.
  • Optional Double Adjustable Upgrade – Built with left- and right-hand threaded adjusters, these control arms allow for on-the-vehicle pinion angle adjustments, helping fine-tune alignment, recenter the rear axle, and optimize suspension geometry for lifts from 0 to 6 inches.
  • Heavy-Duty Construction – Crafted from 1.5" OD DOM Tubing with a 5/16” wall thickness, these arms outperform factory and competitor options with enhanced strength and longevity.
  • Pair with Rear Lower Control Arms for Complete Control – For a fully optimized rear suspension system, pair these Rear Upper Control Arms with our Crawl Series Rear Lower Control Arms to achieve complete axle centering, enhanced pinion angle adjustment, and superior handling.

Two-Stage Powder Coating for Superior Protection

To ensure long-lasting durability and corrosion resistance, these control arms undergo a rigorous two-stage powder coating process. Zinc primer base coat – Provides advanced protection against rust and environmental elements. Durable top coat – Available in 10 custom color options to add a personalized finish that matches your Jeep’s style.

Made in the USA

Proudly manufactured in Orem, UT, our Crawl Series Rear Upper Control Arms are built with precision and high manufacturing standards. By choosing our products, you’re investing in American-made quality, superior craftsmanship, and long-term reliability.


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

Use the vehicle selector on our website to shop by your year, make, and model. On product pages, use the kit builder to select your color, series, and any add-on options, then add to cart — you’ll confirm your lift height at checkout. If you need help, call or email our team.

Standard orders typically ship within 1–3 business days of ordering. Custom color orders take approximately 5–10 business days. Because everything is built in-house, we can turn orders quickly even for custom specifications.

You can reach our team through the contact form on our website, or browse to the Contact Us page. Our team is available to answer pre-sale and technical questions before and after your purchase.

Google

Store reviews on Google

See all on Google
5.0
★ ★ ★ ★ ★
132 reviews
5 ★
97%
4 ★
2%
3 ★
0%
2 ★
1%
1 ★
0%
AP
Ajay Paynter Mar 9, 2026
★ ★ ★ ★ ★ Google
Great company, who worked with me on shipping parts, to arrive in time for a show, when I explained my concern of possibly not getting the control arms in time. Quality is amazing on the part, affordable price for what you get, and the powdercoat is top notch, not a single issue with this product, would buy again.
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.
MM
MIKE (Mike the Mechanic) Jul 26, 2025
★ ★ ★ ★ ★ Google
Amazing company and customer service!!!! I messed up on my order and the fixed it immediately. Would definitely recommend them. Can't wait to hit the trails with their product.
FS
Fernando Salazar Aug 25, 2025
★ ★ ★ ★ ★ Google
Great quality control arms and great customer service. Korby has been a great help at answering my questions on some issues I’ve been having with installation!
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.
BS
Bailey Smith Mar 23, 2025
★ ★ ★ ★ ★ Google
Core 4x4 excels with precision and service and keeps nothing else higher in mind. Everyone I've met at the company is very honest and down to earth, 10/10 would recommend.
LS
Leonard Smith Jan 22, 2026
★ ★ ★ ★ ★ Google
I don’t write reviews often, but Core 4x4 absolutely earned this one. I recently ordered leaf spring mounts and realized after the fact that I messed up my order. Totally my mistake. Instead of giving me the runaround or pointing at a return policy, Core 4x4 emailed me back and forth, worked through exactly what I was doing with my build, and made sure I ended up with the correct parts. That kind of customer service is rare these days — especially in the off-road world where a lot of companies stop caring once the order is placed. The parts themselves are exactly what you hope for: solid, well-made, confidence-inspiring hardware that looks like it belongs under a vehicle that actually gets used. You can tell these are designed by people who understand suspension geometry and real-world abuse, not just CAD screenshots. Mistakes happen — especially on custom or modified builds — and Core 4x4 handled mine like pros. Fast responses, clear communication, and a genuine effort to help me get it right. If you’re on the fence: don’t be. Core 4x4 is the kind of company you want backing your build — the kind that treats customers like fellow enthusiasts, not order numbers.
TD
Tim Davis Sep 24, 2025
★ ★ ★ ★ ★ Google
Customer service is amazing, responds fast and know what they are talking about. Their product looks top of the line.
SA
Samuel “SamDaman904” Anscher Mar 23, 2024
★ ★ ★ ★ ★ Google
I meant to put this reviewing about a year ago now, but ever since I’ve had the core 4 x 4, upper and lower control arms on my 2017 ram 1500, they have worked flawlessly leave been on many offering chips, and I’ll definitely be buying new accessories from them in the future and their new upper control arms that they’re offering for all of the ram trucks. Fantastic customer service fantastic health very automotive, off-road, friendly, and any aftermarket thing for your truck or SUV that they currently have!
JM
Jason Mitchell Dec 8, 2025
★ ★ ★ ★ ★ Google
Installed the full kit on my XJ. Ride quality is night and day better than what I had before. The articulation on the trail is insane. These guys know what they are doing. Already recommended Core 4x4 to everyone in my club.
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Made in Orem, UT · You break it, we replace it.
385-375-2104