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8pc Crawl Series Adjustable Control Arm Kit

Jeep Grand Cherokee WJ 99-04 8pc Crawl Series Adjustable Control Arm Kit
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1,507.23 1507.23 USD 1,674.70

1,674.70

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Order today — ships within 1–3 business days
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Order by 3:00 PM MT today — we'll start tomorrow
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Lifetime warranty Fitment guarantee Ships from Orem, UT 4–8 hr install
COLOR 11 colors — pick yours
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8pc Crawl Series Adjustable Control Arm Kit

Jeep Grand Cherokee WJ 99-04 8pc Crawl Series Adjustable Control Arm Kit
SKU: CRL-J-WJ-K8
Pick your vehicle to confirm fit

1,507.23 1507.23 USD 1,674.70

1,674.70

(Save 10%)

COLOR 11 colors
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.
Compare all tiers →

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.
  • Lift Size
    Choose your current front lift height. Measure from center of wheel to fender if unsure.
  • Hardware
    Choose upgraded hardware if your factory hardware is worn, damaged, or missing.
  • Note to Core4x4:

Select Color to see price and add to cart.

Order today — ships within 1–3 business days
Enter ZIP for arrival estimate change
Order by 3:00 PM MT today — we'll start tomorrow
See full timeline

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
Fully Adjustable 0-6" of lift
3 X-Series Options Only Core 4x4

Complete Suspension Overhaul for Maximum Performance

Revolutionize your Jeep Grand Cherokee WJ’s suspension system with the Crawl Series Ultimate Suspension Kit. Designed for Jeep Grand Cherokee WJ models from 1999-2004, this all-inclusive kit delivers a complete overhaul of your vehicle’s suspension. With unmatched control, flexibility, and adjustability, this kit provides precise axle centering, pinion and caster angle adjustments, and exceptional off-road articulation while maintaining superior on-road comfort.

Key Features and Benefits

  • Comprehensive suspension overhaul – Includes all six control arms, front track bar, and rear upper A-arm, providing full control over suspension geometry, precise alignment, and axle centering.
  • Exceptional flexibility – Equipped with Johnny Joints at all critical points, this kit delivers industry-leading articulation for conquering the toughest off-road terrains.
  • Advanced adjustability – Accommodates lifts from 2 to 6 inches, allowing fine-tuned pinion and caster angle adjustments for optimal driveline performance, axle centering, and enhanced handling.
  • Unmatched durability – Built with .313" wall DOM tubing and premium materials to ensure long-lasting performance in demanding off-road conditions.

Complete Suspension Transformation

The inclusion of the rear upper A-arm makes this the ultimate suspension solution. Combined with adjustable control arms and a front track bar, this setup provides unmatched control over axle positioning, caster adjustments, and pinion angle alignment. With improved articulation and stability, you’ll enjoy a smoother ride on-road and extreme flexibility off-road, making this kit perfect for Jeep enthusiasts looking to push their vehicle’s performance to the limit.

Two-Stage Powder Coating for Maximum Protection

Each component undergoes a two-stage powder coating process for superior durability and corrosion resistance. A zinc primer base coat enhances rust protection, while the durable top coat—available in 10 color options—adds long-lasting resilience and a custom aesthetic.

Proudly Made in the USA

Manufactured in Orem, UT, the Crawl Series Ultimate Suspension Kit is built with the highest standards of American craftsmanship. By sourcing materials locally and maintaining strict quality control, we ensure every component meets the highest durability and performance standards.

Optional Hardware Upgrade

This kit installs easily using factory hardware. For vehicles with rusted or stubborn bolts, optional Grade 8 hardware kits are available separately to ensure a seamless installation.

Final Thoughts

The Crawl Series Ultimate Suspension Kit is the premier solution for Jeep Grand Cherokee WJ owners seeking a full suspension transformation. With superior adjustability, off-road articulation, and long-lasting durability, this kit ensures optimal performance and reliability in any terrain. Upgrade today and experience total suspension control like never before!


  • Vehicle Fitment: Jeep Grand Cherokee WJ 99-04 – Complete suspension transformation for enhanced stability, precise alignment, and unmatched articulation on and off the road.

  • CORE Advantage: Eliminates axle shift, optimizes suspension geometry, and enhances steering control, reducing body roll and death wobble for a smoother, more controlled driving experience.

  • Adjustability: Designed for 2 to 6-inch lifts, allowing for pinion and caster correction, axle centering, and fine-tuned suspension geometry for optimal handling and drivetrain efficiency.

  • Construction: Built with 5/16” wall DOM tubing and equipped with Johnny Joints at all critical points, ensuring superior flexibility, durability, and high-performance articulation.

  • 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, our product includes a lifetime warranty on all non-wear items, providing you with confidence and peace of mind in your purchase.

Built With

Front Lower Control Arm Built With 1.75” OD 5/16” Wall DOM. Welded Johnny Joint on the fixed end and a Forged Johnny Joint on the adjustable end with 1.25” x 12 TPI - 2.625” long threads.

Front Upper Control Arm Built With 1.5” OD 5/16” Wall DOM. Welded u-bracket on the welded end and a Forged Johnny Joint on the adjustable end with 1” x 14” TPI - 2.32” long threads.

Rear Lower Control Arm Built With 1.75” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends with 1.25” x 12 TPI - 2.625” long threads.

Rear Upper A-arm Built With 1.5” OD .25” Wall DOM. Welded Johnny Joints on the frame attachment points and a Forged Johnny Joint on the adjustable end with 1.25” x 12 TPI - 2.625” long threads.

Front Track Bar Built With 1.5” OD 5/16” Wall DOM. Welded Johnny Joint on the fixed end and a Forged Johnny Joint on the adjustable end with 1” x 14 TPI - 2.32” long threads.

Make Model Submodel Years
Jeep Grand Cherokee 1999 - 2004

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

Construction & Materials

Jeep Grand Cherokee WJ 99-04 2pc Crawl Series Front Lower Adjustable Control Arms

Front Lower control arm built with 1.75” OD 5/16” Wall DOM. Welded Johnny Joint on the fixed end and a Forged Johnny Joint on the adjustable end with 1.25” x 12 TPI - 2.625” long threads.

Jeep Grand Cherokee WJ 99-04 2pc Crawl Series Front Upper Adjustable Control Arms

Front Upper control arm built with 1.5” OD 5/16” Wall DOM. Welded u-bracket on the welded end and a Forged Johnny Joints on the adjustable end with 1” x 14” TPI - 2.32” long threads.

Jeep Grand Cherokee WJ 99-04 2pc Crawl Series Rear Lower Adjustable Control Arms

Rear Lower control arm built with 1.75” OD 5/16” Wall DOM. Forged Johnny Joints on the adjustable end and a Welded Johnny Joint on the fixed end with 1.25” x 12 TPI - 2.625” long threads.

Jeep Grand Cherokee WJ 99-04 Crawl Series Front Heavy-Duty Adjustable Track Bar

Front Track Bar built with 1.5” OD 5/16” Wall DOM. Welded Johnny Joint on the fixed end and a Forged Johnny Joints on the adjustable end with 1” x 14 TPI - 2.32” long threads.

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

Rear Upper A-arm built with 1.5” OD .25” Wall DOM. Welded Johnny Joints on the frame attachment points and a Forged Johnny Joints on the adjustable end with 1.25” x 12 TPI - 2.625” long threads.

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.
Series Crawl Series
Lift Size 6"+ or 2"-6"
Hardware No Hardware or Complete Kit
Placement on Vehicle Front Upper, Front Lower, Rear Upper, Rear Lower, Front, Rear
Mounting Style Bolt-On
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Reviews of Core 4x4

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5.0
132 reviews
5
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4
2%
3
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2
1%
1
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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!
RT
Ruby Timm Apr 27, 2025
Google
Bought a new 2019 Ram 1500. Had bad rear wheel hop since new, got all four core 4x4 control arms and it fixed the issue. Thanks
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.
Review photo 1
EL
Eric Labrum May 27, 2025
Google
Best customer service I have ever experienced. They are my go to source do to quality and service
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.
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!
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!
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
D
David Nov 23, 2025
Google
First of I just want to say Great customer service korby Has helped me from the start and has not let me down! Reached out to him again today and he was able to warranty some parts out for me. As far as the quality of the parts.. excellent! The build quality is great. I can definitely tell a Difference from the cheap oem rear control arms to these and the pan hard bar. Color, From what I can tell it’s super durable been through a few mud holes on top of the daily road grime and after a quick wipe they still pop! Overall I recommend. Customer service is everything for me and it’s definitely there at Core 4x4.
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!

Specifications

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.
Lift Size 6"+, 2"-6"
Hardware No Hardware, Complete Kit
Vehicle Jeep Grand Cherokee WJ (99–04)
Brand CORE 4X4
Series Crawl Series
Note to Core4x4: -
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