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SKU: CRL-J-WJ-K8 ★★★★★ (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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$ 1,590.97 1590.97 USD $ 1,674.70

$ 1,674.70

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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/1644/image_1920?unique=608eb6f
SKU: CRL-J-WJ-K8
Fits: 1999 - 2004 Jeep Grand Cherokee WJ Add vehicle
Add Vehicle Google 5.0 ★★★★★ (132 reviews)

$ 1,590.97 1590.97 USD $ 1,674.70

$ 1,674.70

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.
  • 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.

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.

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.

What’s Included in the Kit?

  • Crawl Series front upper control arms – CRL-J-WJ-FU2
  • Crawl Series front lower control arms – CRL-J-WJ-FL2
  • Crawl Series rear lower control arms – CRL-J-WJ-RL2
  • Crawl Series rear upper A-arm – CRL-J-WJ-AA1
  • Crawl Series front track bar – CRL-J-WJ-FTB1

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!


Make Model Submodel Years
Jeep Grand Cherokee 1999 - 2004

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

Master Rebuild kit for CRL-J-WJ-K8 $ 315.00
Master Rebuild kit for CRL-J-WJ-FL2 $ 84.00
Master Rebuild kit for CRL-J-WJ-RL2 $ 84.00
Master Rebuild kit for CRL-J-WJ-AA1 $ 63.00
Master Rebuild kit for CRL-J-WJ-FTB1 $ 42.00
Master Rebuild kit for CRL-J-WJ-FU2 $ 42.00

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

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
Google

Reviews from Google

See all on Google
5.0
★ ★ ★ ★ ★
132 reviews
5 ★
97%
4 ★
2%
3 ★
0%
2 ★
1%
1 ★
0%
DT
Dean Tk421 Feb 21, 2026
★ ★ ★ ★ ★ Google
I purchased the Jeep WJ control arms Camp series over a year ago. Very pleased and impressed. Easy installation and solid build. Bracket broke for rear upper control arm, they redesigned it to be more robust and sent me a new one with hardware, honoring their guarantee!
MD
Mark DiGrappa Apr 27, 2025
★ ★ ★ ★ ★ Google
First off: Korby, the gentleman that helped me decide on which kit to go with is EASILY the nicest, and most patient person I’ve dealt with, when ordering parts for this build. Second: the quality of the product is INSANE! These parts are so nicely fabricated, then powder coated for extra longevity, and they even offer an aluminum upgrade in some cases (which I went with, to save weight). Having said all of this, the most impressive thing was the lead time. These parts are build to order, and I literally ordered my suspension one week ago, today! Yes, they built, powder coated, packaged, shipped my suspension components (RAM 1500 Track rear trailing arm full set in 7075 aluminum, and front upper control arms), AND they arrived, all within a week! Granted, that I’m only one state away, but WOW!!! One week?! Amazing! So, in sort: excellent products, which arrived excellently packaged (no damage, an boxes not over-stuffed with heavy suspension parts; three boxes total, as opposed to one super heavy one…my back thanks you), super quickly, and customer service that ANY business would be envious of….so, if you’re in the market, absolutely go with Core 4X4!
Z
Zion Sep 24, 2025
★ ★ ★ ★ ★ Google
Every product I have received from them has been nothing short of fantastic. Korby in Customer service went above and beyond to help me fix my own mistake. I cannot reccomend them enough.
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
JW
Jonathan Word Aug 25, 2025
★ ★ ★ ★ ★ Google
Beefy parts made and painted well, very fair pricing for what you get, and fantastic customer service to boot. Easily my favorite place to get suspension parts.
D
Danny Oct 24, 2025
★ ★ ★ ★ ★ Google
Outstanding customer service to match the high quality parts. This is the go-to company.
MM
MIKE (Mike the Mechanic) Jul 26, 2025
★ ★ ★ ★ ★ Google
Amazing company and customer service!!!! I messed up on my order and the fixed it immediately. Would definitely recommend them. Can't wait to hit the trails with their product.
TM
Tony Moller Aug 25, 2025
★ ★ ★ ★ ★ Google
Awesome parts! Support the older Jeeps! Great customer service.
JC
John Cutler Oct 24, 2025
★ ★ ★ ★ ★ Google
In September 2025, we visited CORE 4x4 in Orem, Utah. CORE 4x4 makes control arms and other similar parts that stiffen the suspension of an off-road 4x4 vehicles, so that the off-road vehicles can travel on more rugged terrain. CORE 4x4 used to share this building with another business, and since this other business has moved elsewhere, CORE 4x4 will continue to expand and grow their business. Good for CORE 4x4 to be a growing company and to expand into the vacant part of the building.
JM
Jason Mitchell Dec 8, 2025
★ ★ ★ ★ ★ Google
Installed the full kit on my XJ. Ride quality is night and day better than what I had before. The articulation on the trail is insane. These guys know what they are doing. Already recommended Core 4x4 to everyone in my club.

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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