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Jeep Grand Cherokee WJ 99-04 Crawl Series Rear Upper A-Arm w/ Bracket

SKU: CRL-J-WJ-AA1
Fits: 1999 - 2004 Jeep Grand Cherokee WJ Add vehicle

414.74 414.74 USD 414.74

414.74

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

Optimized Rear Suspension Control

Upgrade the performance, adjustability, and durability of your Jeep Grand Cherokee WJ (1999-2004) with the Crawl Series Rear Upper Adjustable A-Arm. Designed for lifted Jeeps from 2 to 6 inches, this heavy-duty A-arm delivers precise pinion angle adjustment, enhanced articulation, and unmatched strength for a smoother, more controlled ride both on and off the road.

What's Included?

  • Crawl Series Rear Upper Adjustable A-Arm w/ Bracket (CRL-J-WJ-AA1)

Key Features Benefits

  • Precision Adjustability – Fully adjustable design allows for precise pinion angle correction, reducing vibration and improving drivetrain alignment for optimal performance.
  • Heavy-Duty Construction – Built with 1.25-inch threads and .25-inch wall DOM tubing, ensuring maximum strength and long-term durability for extreme off-road conditions.
  • Advanced Bracket Design – Includes a laser-cut 1/4-inch steel axle bracket with multiple height settings for customized suspension tuning and improved driveline geometry.
  • Superior Articulation Flexibility – Features RockJock Johnny Joints at both ends for bind-free articulation, increased suspension travel, and exceptional durability, far exceeding factory ball joints.

Two-Stage Powder Coating

Every A-Arm undergoes a two-stage powder coating process for superior corrosion resistance and longevity. The zinc primer base coat provides a strong anti-rust barrier, while the durable top coat—available in 10 custom colors—lets you match your build’s style while ensuring maximum protection.

Made in the USA

Proudly manufactured in Orem, UT, the Crawl Series Rear Upper Adjustable A-Arm is a testament to American craftsmanship, designed to outperform and outlast other aftermarket options.

In Conclusion

For lifted Jeep Grand Cherokee WJs, the Crawl Series Rear Upper Adjustable A-Arm is the ultimate solution for axle centering, pinion angle correction, and maximum articulation. Whether you're tackling rugged trails or cruising the highway, this upgrade ensures superior suspension control, durability, and off-road capability. Upgrade today and take your Jeep’s performance to the next level.


Make Model Submodel Years
Jeep Grand Cherokee 1999 - 2004

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

Vehicle Jeep Grand Cherokee WJ (99–04)
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 Crawl 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.
RH
Roger Hooks Jun 26, 2025
Google
2018 Ram 2500 Rear Control Arms and Rear track Bar been running for about a year, Great Solid Products and great one on one customer service, same day response with issue resolved! Thanks Korby!
JG
James Griffin Jul 26, 2025
Google
Customer service is top notch. They answered all of my questions and got me my tracking number for my packages. I just received both of them and the quality is next level. You guys are truly awesome.
RM
R2d2 Movi78 Feb 21, 2026
Google
I’m extremely impressed with Core 4x4. The quality of their parts is outstanding — everything feels solid, well‑built, and engineered with real attention to detail. Shipping was fast and everything arrived perfectly packaged. Their customer service is just as good as their products: responsive, helpful, and genuinely committed to making sure you get exactly what you need. Overall, a top‑tier experience. I’ll definitely be buying from them again. Specially thank you Mr. Linscomb from Core 4x4. Arturo M.
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!
M
Matt Mar 23, 2024
Google
The best products on the market. 95% of my xj is core 4x4 products
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.
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!
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