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.
Enhanced Rear Suspension Performance and Flexibility
The Camp Series Rear Upper Control Arms deliver exceptional on-road comfort and off-road performance, specifically engineered for Jeep Grand Cherokee WK models (2005-2010).
Designed to provide unmatched strength and adjustability, these control arms ensure optimal handling and durability while addressing critical suspension needs like pinion angle correction and rear axle centering.
What’s Included
- Camp Series Rear Upper Control Arms (CMP-J-WK-RU2)
Exceptional Design and Build Quality
- Heavy-Duty DOM Tubing – Constructed with .313" wall thick DOM tubing, these upper control arms deliver unmatched durability and reliability.
- Premium Joint Technology – Features tapered polyurethane bushings at the fixed end for vibration absorption and RockJock Johnny Joints at the adjustable ends, ensuring superior articulation and flexibility for off-road challenges.
Optimal Adjustability and Compatibility
- Designed for Lifted Vehicles – Accommodates lifts from 0 to 6 inches, allowing for precise pinion angle corrections and rear axle centering.
- Complete Rear Suspension Solution – Pair these control arms with our Camp Series Rear Lower Control Arms to optimize vehicle handling, minimize tire wear, and achieve long-lasting suspension alignment.
- Optional Gas Tank Skid Bend – Enables full range of motion with minimal trimming of the skid plate, making it ideal for lifted vehicles.
Durable Two-Stage Powder Coating
- Zinc primer base coat for rust resistance.
- Durable topcoat, available in 10 color options, provides long-lasting protection and aesthetic customization for your Jeep Grand Cherokee WK.
Proudly Made in the USA
The Camp Series Rear Upper Control Arms are proudly manufactured at our Orem, UT facility, supporting American craftsmanship and ensuring strict quality standards throughout production.
Why Choose Camp Series Rear Upper Control Arms?
- Enhanced Suspension Alignment – Correct pinion angles and re-center the rear axle for a smoother ride and reduced wear.
- Off-Road Flexibility – Johnny Joints provide superior articulation for navigating tough terrains.
- Customizable Fit – Optional gas tank skid bend ensures seamless integration for lifted vehicles.
- Made in the USA – Benefit from American-made quality and support local manufacturing.
In Conclusion
The Camp Series Rear Upper Control Arms offer the ideal solution for improved handling, durability, and performance for your lifted Jeep Grand Cherokee WK.
Pair them with our rear lower control arms for a complete rear suspension solution, ensuring superior alignment and stability.
Upgrade today and experience the excellence of American engineering!
| Make | Model | Submodel | Years |
|---|---|---|---|
| Jeep | Grand Cherokee | 2005 - 2010 |
Each rebuild kit includes all necessary components to replace and restore wearable parts.
| Vehicle | Jeep Grand Cherokee WK (05–10) |
| 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. |
| Lift Size | 0" — 6" or 6"+ |
| Hardware | No Hardware or Complete Kit |
| Series | Camp Series |
| Gas Tank Skid Clearance Bend | No Bend or Clearance Bend |
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
MM
Mike Martinez
Aug 25, 2025
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Phenomenal company - very rare to come by in the automotive industry. Also very impressing. Let me start here. I got a set of yellow sway bar end links for my 19 ram DT (new body style) and let me tell you, I’m hooked. For numerous reasons. One the craftsmanship behind the product is unmatched for sure for without breaking the bank. 2ndly, they stand behind their product. Had a very minor issue and it was resolved in a blink of an eye!!! Insane. Just because of what i listed above i will forever spend my money with core 4x4! And i think you should too! I have no affiliation at all with this company besides being a consumer. I will be ordering my yellow UCAs and the rest of my rear suspension from them here shortly!
Korby on the other hand. The representative that helped me went above and beyond FAST. I hung up the phone with him, and with in no lie 3 minutes he was calling back with an answer. GREAT GREAT GREAT customer service, Korby you and core 4x4 are what give us hope in the car community! With much love and great health to you all!!
MM
MIKE (Mike the Mechanic)
Jul 26, 2025
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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.
CM
Cameron Masters
Mar 24, 2023
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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.
AP
Ajay Paynter
Mar 4, 2026
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Great company, who worked with me on shipping parts to arrive in time for a show. When I explained my concern they went above and beyond to make it happen. Quality of the parts is top notch.
MG
Morgan Griffith
Mar 25, 2018
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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.
B
Ben
Mar 24, 2021
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2001 Wrangler TJ- i have purchased all front/rear upper/lower control arms. Front track bar and rear track bar. Quality is excellent and extremely durable you can tell its built to last. Bent a bolt on the front track bar and called and spoke with Spence. He immediately sent me out new hardware plus some! Product is amazing but what really separates companies apart is their service and these guys are second to none. Thank you all!
C
Chris
Oct 24, 2025
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Great product for a good price. Customer service is top notch, I had an issue which was self cause and Core 4x4 helped me out even though it was my own fault. Would definitely recommend and use them again.
BM
Brantly Musgrave
Jan 22, 2026
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First and foremost would like to say that Core4x4s customer service is top notch and they definitely stand behind their warranty on products! Highly recommend using them for any of your off road needs! It’s rare to find a company now a days that backs their products and they do!
Had a few issues with mounts and control arms and they handled it without hesitation! Thank you!
MP
Mirko Pompili
Mar 19, 2026
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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.
CM
Craig MacIver
May 27, 2025
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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.
Accessories & Add-ons
5pc Kit
Jeep Grand Cherokee WK 05-10 5pc Camp Series Rear Adjustable Control Arm, Track Bar Kit
$ 834.70
Rear Lower Control Arms
Jeep Grand Cherokee WK 05-10 2pc Camp Series Rear Lower Adjustable Control Arms
$ 356.95
Rear Sets
Jeep Grand Cherokee WK 05-10 4pc Camp Series Rear Adjustable Control Arm Kit
$ 656.20
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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 | 0" — 6", 6"+ |
| Hardware | No Hardware, Complete Kit |
| Gas Tank Skid Clearance Bend | No Bend, Clearance Bend |
| Vehicle | Jeep Grand Cherokee WK (05–10) |
| Brand | CORE 4X4 |
| Series | Camp Series |
| Note to Core4x4: | - |
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