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SKU: CRL-J-TJLJ-RU2 ★★★★★ (132 reviews)
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LIFETIME WARRANTY
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FITS YOUR EXACT VEHICLE
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SHIPS IN 1–3 DAYS
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MADE IN UTAH, USA
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$ 413.92 413.92 USD $ 435.70

$ 435.70

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🔧 Built to order · Ships in 1–3 business days

COLOR 11 colors — pick yours
https://jerdev.core4x4.com/web/image/product.template/2120/image_1920?unique=8d2fc88
SKU: CRL-J-TJLJ-RU2
Fits: 1997 - 2006 Jeep Wrangler TJ Add vehicle
Add Vehicle Google 5.0 ★★★★★ (132 reviews)

$ 413.92 413.92 USD $ 435.70

$ 435.70

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.
  • Series
    Cruise: daily driving and light off-road. Camp: overlanding. Crawl: aggressive rock crawling.
  • Hardware
    Choose upgraded hardware if your factory hardware is worn, damaged, or missing.
  • Lift Size
    Choose your current front lift height. Measure from center of wheel to fender if unsure.
  • Adjustment Type
  • Note to Core4x4:

Select Color to see price and add to cart.

WHAT’S INCLUDED
4
Upper Control Arms
4
Lower Control Arms
2
Front Track Bars
2
Rear Track Bars
4
End Links

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

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.

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.

What’s Included

  • Crawl Series Rear Upper Control Arms (CRL-J-TJLJ-RU2)

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.

Optional Hardware Upgrade

Designed for bolt-on installation using factory hardware, these control arms offer a straightforward upgrade. For those dealing with rusted or worn-out bolts, we offer optional Grade 8 hardware kits, available separately for a hassle-free installation.

In Conclusion

The Crawl Series Rear Upper Control Arms are a must-have upgrade for Jeep Wrangler TJ/LJ owners looking for superior off-road articulation, improved alignment correction, and long-lasting durability. Whether you're tackling technical rock trails or fine-tuning your Jeep's suspension setup, these control arms provide the adjustability and strength needed for optimal performance. Upgrade today and experience the best in off-road suspension control!


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

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

Master Rebuild kit for CRL-J-TJLJ-RU2 $ 84.00

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

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
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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%
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.
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.
MH
mark hinz Mar 2, 2026
★ ★ ★ ★ ★ Google
Went above and beyond to get the parts we needed to complete our customers build for Moab Easter safari cant thank you enough for all your hard work and efforts Thank you and look forward to working with you in the near future
8
89Patriot Jan 22, 2026
★ ★ ★ ★ ★ Google
Great company! I have used there products consistently with no complaints with quality you can see and feel. From my experience, their customer service is also amazing. Core 4x4 has no issues standing behind their already amazing products and will quickly and professionally solve issues may they arise. I will continue to be a customer.
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.
RP
Robin Poole Jul 26, 2025
★ ★ ★ ★ ★ Google
I had several questions before my purchase and Korby helped me with the correct parts to order and recommendations. Outstanding customer service and product knowledge! Can't wait to install them!
OA
Owen Adams Sep 24, 2025
★ ★ ★ ★ ★ Google
These guys are awesome I messed up my address on my order somehow and they were so so helpful Korby was right there every step to a solution very communicative and respectful I will definitely be ordering parts with them in the future!
GH
Gary Haag Aug 25, 2025
★ ★ ★ ★ ★ Google
Ordered a set of Core 4x4 control arms for my 2006 Jeep TJ. These are some heavy duty quality control arms. Can't wait to get them installed. Great customer service too!
BC
Brad C Mar 24, 2021
★ ★ ★ ★ ★ Google
Outstanding experience! I asked Core to build me a set of custom control arms that were larger/heavier than they normally build. They gladly accepted the challenge and turned out an expertly crafted and super strong product ahead of schedule. Fit and finish are excellent. Spence and Cameron were a pleasure to work with every step of the way. And all of this for a very reasonable price. I highly recommend these guys!
S
Sebastian Oct 24, 2025
★ ★ ★ ★ ★ Google
Great products they sell, got a crawl series long arm kit for my xj and it has held up quite nice, they are beefy, and for what ever reason they fail it has a great warranty with a customer service to match, when someone asks what control arm kit to buy I always recommend core 4x4

Specifications

Vehicle Jeep Wrangler TJ (97–06), Jeep Wrangler LJ (04–06)
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
Lift Size 0" — 6", 6"+
Adjustment Type Single Threaded, Double Threaded
Brand CORE 4X4
Series Crawl Series
Note to Core4x4: -
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