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8pc Cruise Series Adjustable Control Arm, Track Bar Kit

Jeep Grand Cherokee WJ 99-04 8pc Cruise Series Adjustable Control Arm, Track Bar Kit
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803.24 803.24 USD 1,070.99

1,070.99

Save 25% · $ 267.75 off

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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
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100% bolt-on no welding MADE IN USA · Orem, Utah Expert Support 100K+ Community
Free mounting hardware included — a $80 value
1
CRUISE

"Daily Confidence" — Daily driver, light trails

We also build Camp, Crawl Compare Series
Joints Flex Polyurethane
Tubing 1.875" OD lowers / 1.625" OD uppers 3/16" wall DOM
COLOR Pick yours
https://jerdev.core4x4.com/web/image/product.template/1604/image_1920?unique=982bc5a

8pc Cruise Series Adjustable Control Arm, Track Bar Kit

Jeep Grand Cherokee WJ 99-04 8pc Cruise Series Adjustable Control Arm, Track Bar Kit
SKU: CRS-J-WJ-K8
Pick your vehicle to confirm fit

803.24 803.24 USD 1,070.99

1,070.99

Save 25% · $ 267.75 off

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.

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.

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
Free mounting hardware included — a $80 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

The Ultimate Suspension Upgrade

Take your Jeep Grand Cherokee WJ (1999-2004) to the next level with the Cruise Series 8-Piece Suspension Kit. This all-inclusive control arm and track bar solution eliminates common suspension issues like wandering, rut tracking, steering instability, and even death wobble. Designed for absolute control over axle centering, pinion, and caster angles, this kit will drastically improve your vehicle’s highway drivability, off-road handling, and overall stability. For a ready-to-go lift kit, just pair this system with your choice of shocks and springs, and you'll have a setup that outperforms anything else on the market.

Key Features and Benefits

  • Complete suspension overhaul – Eliminates wandering, rut following, steering instability, and death wobble for a smoother, more controlled ride.
  • Optimized adjustability – Designed to accommodate lifts from 2 to 6 inches, allowing for precise pinion and caster angle correction.
  • Enhanced durability – Built from heavy-duty steel tubing, providing superior strength and long-term reliability.
  • Upgrade-ready – Simply select your preferred shocks and springs to complete your lift kit and dominate any terrain.

Maximized Adjustability Performance

This fully adjustable 8-piece kit is engineered to recenter axles, correct suspension geometry, and eliminate driveline vibrations. The adjustable rear upper A-arm provides pinion angle correction, ensuring long-term drivetrain reliability and smooth highway cruising. By correcting caster and axle placement, this kit eliminates handling issues common in lifted WJs.

Two-Stage Powder Coating for Maximum Protection

To ensure maximum durability, all components in this kit undergo a two-stage powder coating process. The zinc primer base coat provides exceptional corrosion resistance, while the top coat—available in 10 color options—adds a personal touch while offering extra protection.

Proudly Made in the USA

The Cruise Series 8-Piece Suspension Kit is proudly manufactured in Orem, UT, using locally sourced materials. We ensure that every component meets the highest performance and durability standards while keeping costs competitive.

Optional Hardware Upgrade

This kit is designed for seamless installation using factory hardware. However, for those dealing with rusted or stubborn bolts, we offer optional Grade 8 hardware kits, available separately to make installation easier.

Final Thoughts

The Cruise Series 8-Piece Suspension Kit is the ultimate performance upgrade for your Jeep Grand Cherokee WJ. With enhanced axle centering, precise pinion and caster angle correction, and unmatched suspension stability, this kit delivers a better ride, superior control, and long-lasting durability. Pair this system with your choice of shocks and springs, and you'll have a high-performance lift kit that beats anything else on the market! Upgrade today and feel the difference in stability, handling, and off-road confidence.


  • Vehicle Fitment: Jeep Grand Cherokee WJ 99-04 – Delivers a complete suspension overhaul, restoring proper axle alignment, enhancing handling stability, and eliminating common issues like death wobble, wandering, and rut tracking.

  • CORE Advantage: Corrects caster and pinion angles, ensuring smooth highway driving, eliminating driveline vibrations, and improving off-road handling by optimizing suspension geometry and axle placement.

  • Adjustability: Fully adjustable for lifts from 2 to 6 inches, allowing precise caster correction, axle centering, and pinion angle adjustments for improved drivability and long-term suspension performance.

  • Construction: Built from heavy-duty steel tubing with reinforced threads, featuring advanced polyurethane bushings to deliver superior strength, durability, and responsiveness over factory components.

  • 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 arms built with 1.875” OD 3/16” Wall DOM. Polyurethane Bushings on the fixed and adjustable ends with 1.25” x 12 TPI - 3.25” long threads.

Front Upper control arms built with 1.625” OD 3/16” Wall DOM. Welded U-bracket on the fixed end and a Polyurethane Bushing on the adjustable end with 1” x 14 TPI - 3.25” long threads.

Rear Lower control arms built with 1.875” OD 3/16” Wall DOM. Polyurethane Bushings on the fixed and adjustable ends with 1.25” x 12 TPI - 3.25” 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 Joints 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. Polyurethane Bushing on the fixed end and a Forged Johnny Joints 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 Cruise Series Front Lower Adjustable Control Arms

Front Lower control arms built with 1.875” OD 3/16” Wall DOM. Polyurethane Bushings on the fixed and adjustable ends with 1.25” x 12 TPI - 3.25” long threads.

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

Front Upper control arms built with 1.625” OD 3/16” Wall DOM. Welded U-bracket on the fixed end and a Polyurethane Bushing on the adjustable end with 1” x 14 TPI - 3.25” long threads.

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

Rear Lower control arms built with 1.875” OD 3/16” Wall DOM. Polyurethane Bushings on the fixed and adjustable ends with 1.25” x 12 TPI - 3.25” long threads.

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

Front Track Bar built with 1.5” OD 5/16” Wall DOM. Polyurethane Bushing 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.
Hardware No Hardware or Complete Kit
Series Cruise Series
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%
TM
T Mac Mar 23, 2026
Google
CORE 4X4 Company produces/manufactures exceptional products. My rear upper and lower control arms and rear track bar were powder coated custom Fox “Shock Orange” for my 2024 Bronco Wildtrak. OEM looks minimal compared to the CORE 4X4 control arms. Plus they’re adjustable, serviceable and rebuildable. Shipment was very fast and packaging used custom foam wrapped around the arms and heavy duty boxes. Not even UPS could damage. Korby L. was great to work with and responded quickly with emails and product information. Great products. Great people from the State of Utah. All Made in the USA. 5 Stars!!!
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.
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.
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!
MV
Mr. V Mar 24, 2021
Google
Good quality parts, much stronger than stock
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.
Review photo 1
MG
Morgan Griffith Mar 25, 2018
Google
I met a couple of the Core 4x4 guys at the Salt Lake Offroad Expo and decided to try them out after noticing one of my control arm bushings was disintegrated. I called to discuss parts on Thursday and I was leaving for a trip on Saturday. These guys built my control arms and had them ready to be picked up Friday, 24 hours later. The parts seem to be great quality and they charged me nothing extra to have them painted. These guys were extremely helpful and without them my trip probably would have been cancelled. looking forward to testing out the arms on my next trip to Moab.
CM
Cameron Masters Mar 24, 2023
Google
Absolutely incredible family owned business. I asked to pick up my order since I’m local and they came in on a weekend to accommodate. Had to make some adjustments to parts and took the time to make sure it was perfect. Parts are incredible quality. If you have a Jeep, do not hesitate to support this local business.
MP
Mirko Pompili Mar 19, 2026
Google
I want to share a truly positive experience. I ordered a car kit consisting of two packages, but unfortunately one was lost during shipping with UPS. The situation could have become complicated... but it didn't. The company manager was extremely helpful and professional: he personally followed up on the situation and did everything he could to resolve the issue, even sending me the package again without hesitation. It's rare to find such attentive and reliable customer service these days. My sincere congratulations on your professionalism and commitment: that makes all the difference.

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
Vehicle Jeep Grand Cherokee WJ (99–04)
Brand CORE 4X4
Series Cruise Series
Note to Core4x4: -
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