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SKU: CRL-J-WJ-K7 ★★★★★ (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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$ 1,272.76 1272.76 USD $ 1,339.75

$ 1,339.75

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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/1739/image_1920?unique=d24f1f7
SKU: CRL-J-WJ-K7
Fits: 1999 - 2004 Jeep Grand Cherokee WJ Add vehicle
Add Vehicle Google 5.0 ★★★★★ (132 reviews)

$ 1,272.76 1272.76 USD $ 1,339.75

$ 1,339.75

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.

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.

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.

What’s Included?

  • 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 front track bar – CRL-J-WJ-FTB1

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!


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-K7 $ 252.00
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-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
Hardware No Hardware or Complete Kit
Lift Size 6"+ or 2"-6"

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
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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%
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!!!
RC
Robert C May 27, 2025
★ ★ ★ ★ ★ Google
Fantastic products! Outstanding performance!! Absolutely the best customer service!! You will not be disappointed!
AL
Andrew LaFave May 27, 2025
★ ★ ★ ★ ★ Google
I am really please with this company. Great product, i had an issue with a couple of the jonnhy joint bushings, they explained what had caused it and how to fix it. Within hrs of receiving my inquiry, i had heard back with the required info I needed. A couple hrs later problem was fixed and ready for the trail again. They care about heir product and their customers. Thanks crew, you rock
GC
Grant Chaisson Jun 26, 2025
★ ★ ★ ★ ★ Google
These guys are awesome!! They have helped me build multiple jeeps from zjs to mjs and now with my lj build they all ways impress. There products are the best on the market in my eyes. The best part about it all is it's all made right here in american and shipped anywhere in the world 🌎 . Don't think twice when your looking for control arm or lift kits for your vehicle if these guys sell it BUY IT!!!
GN
Glenn Nowosad Jan 22, 2026
★ ★ ★ ★ ★ Google
I just finished installing the Peak 2.0 Front Suspension system with the Core 4x4 Blue Tacoma Rear Suspension system on my 2024 TRD Offroad Premium Tacoma. The two upgraded suspension systems really made a difference in how the ride feels, whether we’re off-road or on the road. A big thank you to Korby and the team at Core 4x4 for their support and for getting the shipping sorted out so quickly!
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.
GH
Gary Haag Aug 25, 2025
★ ★ ★ ★ ★ Google
Ordered a set of Core 4x4 control arms for my 2006 Jeep TJ. These are some heavy duty quality control arms. Can't wait to get them installed. Great customer service too!
CM
Craig MacIver May 27, 2025
★ ★ ★ ★ ★ Google
Got the CAMP version of adjustable control arms and track bars for our 03 TJ with a 3” lift and 33x10.5 KO 2’s. Super beefy bars, great fit and adjustability. Friendly advice and support from Korby at CORE 4X4. Good follow up as well. The ride quality is great as well as the handling. I think it all looks pretty good as well.
JM
Jay Miller Jul 26, 2025
★ ★ ★ ★ ★ Google
I purchased a upper and lower set of control arms from core 4x4 they came early then expected and seem to be very nice quality I ran into a complication installing them and emailed them my question I was expecting to get the response maybe the next day because it was after hours I got a response in about a few minutes which allowed me to finish the project that day I super appreciate that, the products are good strong lifetime warranty and their customer service is top notch
MS
Mr. Smith Nov 23, 2025
★ ★ ★ ★ ★ Google
Have yet to get to try them but I bought some upper, and then later , lower control arms for my 03 rubicon. The pricing is very fair, so fair I was hesitant to even purchase. When the product came in I was happily mistaken. These are some beefy units with an incredible warranty! I’m very excited! I went with the “Camp”series as I mostly daily it. I have trouble with the shipping at times when I ordered but Corby is quick to notice things and help communicate the solution. Looking forward to buying more parts!

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 6"+, 2"-6"
Vehicle Jeep Grand Cherokee WJ (99–04)
Brand CORE 4X4
Series Crawl Series
Note to Core4x4: -
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