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Jeep Grand Cherokee WJ 99-04 7pc Crawl Series Adjustable Control Arm, Track Bar Kit
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1,101.81 1101.81 USD 1,339.75

1,339.75

(Save 18%)

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Order today — ships by Mon, Jun 1
Salt Lake City, UT change
Order by 3:00 PM MT today — we'll start tomorrow
See full timeline
Lifetime warranty Fitment guarantee Ships from Orem, UT 4–8 hr install
Free mounting hardware included — a $70 value
COLOR 11 colors — pick yours
https://core4x4.com/web/image/product.template/1739/image_1920?unique=0e84aee

7pc Crawl Series Adjustable Control Arm, Track Bar Kit

Jeep Grand Cherokee WJ 99-04 7pc Crawl Series Adjustable Control Arm, Track Bar Kit
SKU: CRL-J-WJ-K7
Pick your vehicle to confirm fit

1,101.81 1101.81 USD 1,339.75

1,339.75

(Save 18%)

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.
  • 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.
  • Note to Core4x4:

Select Color to see price and add to cart.

Order today — ships by Mon, Jun 1
Salt Lake City, UT change
Order by 3:00 PM MT today — we'll start tomorrow
See full timeline
Free mounting hardware included — a $70 value

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

Unmatched Comfort, Durability, Control, and Stability

Transform your Jeep Grand Cherokee WJ’s suspension with the Crawl Series Complete Control Arm and Track Bar Set, the ultimate upgrade for both on-road comfort and off-road capability. Designed for 1999-2004 models, this kit provides unmatched durability, improved handling, and precise suspension adjustability. Whether you're daily driving or tackling extreme terrain, this comprehensive control arm and track bar set ensures your WJ remains stable, responsive, and trail-ready.

Key Features Benefits

  • Complete suspension control – This kit includes all six control arms and a front track bar, allowing for full alignment adjustability, axle centering, and caster correction, significantly enhancing handling and ride quality.
  • Exceptional articulation and strength – Built with .313" wall thick DOM tubing and featuring Rock Jock Johnny Joints at both ends, these arms provide unparalleled flexibility while maintaining exceptional durability for extreme off-road use.
  • Precise adjustability – Engineered to accommodate lifts from 2 to 6 inches, this set enables fine-tuned caster and pinion angle adjustments, ensuring better steering response, tire longevity, and overall suspension performance.
  • Pair with the rear A-arm for a complete overhaul – While this set delivers exceptional suspension control, adding our Crawl Series Rear Upper A-Arm (CRL-J-WJ-AA1) creates the ultimate full-system suspension upgrade, maximizing stability and performance in all driving conditions.

Two-Stage Powder Coating for Maximum Durability

All components undergo our two-stage powder coating process, ensuring long-lasting protection against corrosion and wear. This includes a zinc primer base coat for enhanced rust resistance and a durable top coat, available in 10 different colors to match your vehicle’s style.

Proudly Made in the USA

Designed and manufactured in Orem, UT, the Crawl Series Complete Control Arm and Track Bar Set reflects the highest standards of American craftsmanship. With locally sourced materials and strict quality control, we ensure superior strength, reliability, and performance in every component.

Optional Hardware Upgrade

Designed for straightforward installation using factory hardware, this set is a hassle-free upgrade for your Jeep Grand Cherokee WJ. If you encounter rusted or stubborn bolts, we offer optional Grade 8 hardware kits separately for a smooth and secure installation.

Final Thoughts

Upgrade your Jeep Grand Cherokee WJ with the Crawl Series Complete Control Arm and Track Bar Set and experience unparalleled control, stability, and suspension performance. Whether you're hitting the trails or cruising the highway, this set delivers the durability and precision you need. Take your WJ’s suspension to the next level today!


  • Vehicle Fitment: Jeep Grand Cherokee WJ 99-04 – Delivers exceptional suspension control, enhanced stability, and improved handling for lifted and factory-height setups.

  • CORE Advantage: Maximizes articulation, eliminates axle shift, and improves steering precision, reducing body roll and death wobble for a more controlled, predictable driving experience.

  • Adjustability: Designed for 2 to 6-inch lifts, allowing for precise caster correction, axle centering, and pinion angle tuning, ensuring smooth handling and drivetrain longevity.

  • Construction: Crafted from 5/16” wall DOM tubing, featuring Johnny Joints at both ends for superior articulation, long-lasting durability, and extreme off-road flexibility.

  • 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.

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.

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
Hardware No Hardware or Complete Kit
Lift Size 2"-6" or 6"+
Placement on Vehicle Front Upper, Front Lower, Rear Upper, Rear Lower, Front, Rear
Mounting Style Bolt-On

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, lift height, and any add-on options, then add to cart. 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

Reviews of Core 4x4

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5.0
132 reviews
5
97%
4
2%
3
0%
2
1%
1
0%
JO
Jaime Overmyer Nov 23, 2025
Google
Korby was extremely helpful in helping me find the right part for my truck. He was kind, knowledgeable, and patient while I asked a million questions. He also went out of his way to find the right shipping option for me since it’s tricky where I live. I’m looking forward to getting the parts so I can fix my truck and go adventuring again soon!
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.
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
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
N
Nick Sep 24, 2025
Google
I have a 2016 RAM 1500 Crew Cab and I replaced the rear upper and lower control arms also the pan hard track bar and also the sway bar and links for the rear with all I had the articulating bushings. The vehicle now has no body role. They are absolutely incredible if you get the control arms you gotta get the CORE 4 x 4sway bar end links don’t don’t try and be cheap and get Moog or something else you got to get articulating bushings get the core 4 x 4 ones they are the best. My truck drives now through the canyons like a BMW. I have Fox high-performance shocks on there as well with all the CORE 4 x 4 suspension parts and they are amazing. Well worth the money I would highly recommend anybody thinking about CORE 4 x 4 go with CORE 4X4 and if you can go with their articulating bushings, they’re unbelievable drives better now than my Escalades. Well planted no body role and smooth on the Highway unbelievable the difference they all made!! THANKS AGAIN CORE 4x4!!!!
EG
Erica Grissom May 27, 2025
Google
First off, I wish I knew about them sooner. The customer service is top tier. The response time is about 30 min no waiting 1-3 days to get a response. The parts are heavy-duty and look amazing. The packaging is perfect, I can't wait to hit some trails. Thanks Core4x4
MB
Melody Baker Jan 22, 2026
Google
I ordered a part for my 03 Jeep TJ and all I can say is wow! Korby at Core 4x4 is a total rockstar!! There was a glitch with my payment and within minutes, Korby reached out to me to get it fixed, then sent my receipt with the tracking number. I lost the number and reached out to him during the Holidays and got a rapid response with the number again. I can’t say enough about the customer service and the quality of parts. Thank you!!
DN
Devan Nelson Mar 25, 2019
Google
Had a great experience with Core 4x4, I desperately needed a custom track bar and found out just a couple days before Easter Jeep Safari. Spence was a huge help and made it happen with plenty of time to spare. Their parts are top notch!
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.
GV
Gil Valk Sep 24, 2025
Google
Excellent service, Prompt responses when needing technical assistance, Amazing looking parts that fit excellently. I would recommend them to anyone looking for suspension components. Also very well packaged when we received the shipment, which means no damage from shipping company!! We went with the Crawl Series double adjustable kit and it definitely looks killer on our build!!!
Review photo 1 Review photo 2 Review photo 3 Review photo 4

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