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.
Transform Your Jeep Grand Cherokee WJ’s Performance
Upgrade your Jeep Grand Cherokee WJ with the Camp Series Complete Control Arm, Track Bar, and Rear Upper A-Arm Set. Designed for unparalleled on-road comfort and off-road resilience, this comprehensive suspension kit provides the ultimate upgrade for Jeep WJ owners. Pair it with your own springs and shocks to create a complete lift kit tailored to your vehicle.
What’s Included?
- Camp Series front upper control arms – CMP-J-WJ-FU2
- Camp Series front lower control arms – CMP-J-WJ-FL2
- Camp Series rear lower control arms – CMP-J-WJ-RL2
- Camp Series front track bar – CMP-J-WJ-FTB1
- Rear upper adjustable A-arm – CRL-J-WJ-AA1
- Axle-side bracket and necessary hardware
- Mounting spacers (6)
Key Features and Benefits
- Unmatched build quality and performance – Each component is constructed using 5/16” wall DOM tubing for exceptional strength and longevity. Featuring tapered polyurethane bushings at the fixed ends and Rock Jock Johnny Joints at the adjustable ends, this kit ensures superior flexibility, articulation, and vibration absorption.
- Optimized adjustability for lifted vehicles – Designed to accommodate lifts from 2 to 6 inches, this kit allows precise alignment corrections, axle re-centering, and optimal pinion angle adjustments. The included rear upper adjustable A-arm adds additional articulation and control for improved driveline geometry, eliminating vibrations commonly found in lifted vehicles.
- Complete suspension upgrade – This all-inclusive kit provides everything needed to overhaul your vehicle's suspension system. Pair it with springs and shocks to create a fully customized lift kit, delivering superior control, stability, and performance on any terrain.
- Durable two-stage powder coating – All components undergo a rigorous two-stage powder coating process, beginning with a zinc primer for corrosion resistance and followed by a durable top coat in 10 vibrant color options. This ensures long-lasting protection and allows you to match your vehicle’s style.
Proudly Made in the USA
Manufactured in Orem, UT, the Camp Series Complete Suspension Kit is built to the highest standards of American craftsmanship. We source premium materials locally and oversee every aspect of production to ensure superior quality, fit, and performance.
Installation Made Easy
This kit is designed for a straightforward bolt-on installation using factory hardware. If your bolts are rusted or worn, we offer optional Grade 8 hardware kits for a hassle-free upgrade.
Final Thoughts
The Camp Series Complete Suspension Kit is the perfect upgrade for Jeep Grand Cherokee WJ owners looking for total adjustability, improved handling, and long-term durability. Whether you're conquering rugged terrain or improving on-road drivability, this kit delivers enhanced strength, stability, and ride quality.
Upgrade today and experience the difference in suspension performance and American craftsmanship!
| 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 CMP-J-WJ-K8
$ 284.00
| 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 | Camp 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
Reviews from Google
5.0
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132 reviews
MT
Mike T
Nov 23, 2025
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Korby and the rest of the team at Core 4x4 know there stuff and answered my question in a timely manner. They even were able to quick ship a re-build kit for me so I could get my truck back on the road- Thanks!
TM
T Mac
Mar 23, 2026
★
★
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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!!!
NP
Norb Pranger
Oct 24, 2025
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Not sure where to start, Products or Service or Warranty.
Products: I found Core4x4 through a very respected YouTuber in the Jeeping community. I purchased an entire set of Core4x4 Control Arms three years ago and have beat the daylights out of them and they are still in great condition. Now, I purchased another Jeep, this time for my daughter and bought yet another set of Control Arms because I know that these things can take a beating and stand up to it. I plan on replacing more parts on this TJ and my JL and will continue to buy from Core4x4.
Service: This isn't some huge name conglomerate that treats you like you're just another customer. They are quick with responses and will always make things right should something be a problem. Oh and the quickness in which they ship their products is unmatched. I bought these CAs for my TJ on Thursday, I received them on Monday. Most other manufacturers will tell you weeks, they had them to me in 2 shipping days.
Warranty: Seriously, a lifetime warranty? Yes please. Nothing more to say.
I can't say enough about how great of a company this is. I've even spoken to the owner through email a few years back on some questions that I had. Support small American built businesses.
P.S. Core 4x4, feel free to make me an ambassador and send me some swag :) .
D
Danny
Oct 24, 2025
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Outstanding customer service to match the high quality parts. This is the go-to company.
BC
Brad C
Mar 24, 2021
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Outstanding experience! I asked Core to build me a set of custom control arms that were larger/heavier than they normally build. They gladly accepted the challenge and turned out an expertly crafted and super strong product ahead of schedule. Fit and finish are excellent. Spence and Cameron were a pleasure to work with every step of the way. And all of this for a very reasonable price. I highly recommend these guys!
GM
George Mar
Sep 24, 2025
★
★
★
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Great company. Highly satisfied with Core 4x4 customer service. Had some bushings fall apart around 600 miles from home. Called and spoke with Korby Linscomb on Thursday, late in the afternoon. He was able to get my bushings sent across country overnight at a very reasonable rate. Had me up and running by Friday evening with enough time to enjoy the Great Smoky Mountain Jeep Invasion. Thanks Guys!
N
niceguyr1
Mar 24, 2023
★
★
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I purchased upper and lower adjustable arms for my WJ and lowers were missing the spacers. I didn't know until 3 months later when I was installing them. With absolutely zero hassles they quickly sent me the missing spacers. Fantastic product and service! Huge thank you guys for the awesome service and parts!!! Customer service is quickly becoming a lost commodity and you guys gave me hope that it's still alive and well, you just have to buy from the right people... Thanks again for going above and beyond! 👍👍
SC
Singer Heating and Cooling
Mar 25, 2018
★
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These guys are great. You can get them on the phone for support. This important and is not always the case with other custom parts builders. Their control arms are bomb proof and offer plenty of options. You can get real genuine Currie Johnny joints without paying the price for Currie arms.
SA
Samuel “SamDaman904” Anscher
Mar 23, 2024
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★
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I meant to put this reviewing about a year ago now, but ever since I’ve had the core 4 x 4, upper and lower control arms on my 2017 ram 1500, they have worked flawlessly leave been on many offering chips, and I’ll definitely be buying new accessories from them in the future and their new upper control arms that they’re offering for all of the ram trucks. Fantastic customer service fantastic health very automotive, off-road, friendly, and any aftermarket thing for your truck or SUV that they currently have!
DD
DANIEL DUSSAULT
Nov 23, 2025
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★
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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.
Suggested Products
Front Lower Control Arms
Jeep Grand Cherokee WJ 99-04 2pc Camp Series Front Lower Adjustable Control Arms
$ 362.20
Front Upper Control Arms
Jeep Grand Cherokee WJ 99-04 2pc Camp Series Front Upper Adjustable Control Arms
$ 309.70
Rear Lower Control Arms
Jeep Grand Cherokee WJ 99-04 2pc Camp Series Rear Lower Adjustable Control Arms
$ 393.70
Front track Bars
Jeep Grand Cherokee WJ 99-04 Camp Series Front Heavy-Duty Adjustable Track Bar
$ 251.95
Rear Upper Control Arms
Jeep Grand Cherokee WJ 99-04 Crawl Series Rear Upper A-Arm w/ Bracket
$ 414.74Accessories & Add-ons
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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 | Camp Series |
| Note to Core4x4: | - |
| Tags | |
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