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4pc Crawl Series Rear Adjustable Control Arm Kit

Jeep Grand Cherokee WK 05-10 4pc Crawl Series Rear Adjustable Control Arm Kit
Pick your vehicle to confirm fit

785.36 785.36 USD 923.95

923.95

(Save 15%)

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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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Lifetime warranty Fitment guarantee Ships from Orem, UT 4–8 hr install
COLOR 11 colors — pick yours
https://dev.core4x4.com/web/image/product.template/1747/image_1920?unique=edc8f61

4pc Crawl Series Rear Adjustable Control Arm Kit

Jeep Grand Cherokee WK 05-10 4pc Crawl Series Rear Adjustable Control Arm Kit
SKU: CRL-J-WK-RS4
Pick your vehicle to confirm fit

785.36 785.36 USD 923.95

923.95

(Save 15%)

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.
Compare all tiers →

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.
  • 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.
  • Series
    Cruise: daily driving and light off-road. Camp: overlanding. Crawl: aggressive rock crawling.
  • Gas Tank Skid Clearance Bend
  • 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

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

Maximize Your Jeep Grand Cherokee WK’s Suspension Performance

Upgrade your Jeep Grand Cherokee WK (2005-2010) with the Crawl Series Rear Control Arm Set, engineered for unmatched strength, durability, and off-road articulation. This set replaces factory components with heavy-duty adjustable control arms, ensuring precise axle alignment, optimized suspension geometry, and improved handling—essential for lifted vehicles navigating rough terrain.

Key Features and Benefits

  • Unmatched Strength Durability – Built from .313" wall DOM tubing, these control arms provide maximum resilience and longevity in extreme off-road conditions.
  • Full Suspension Adjustability – Designed to accommodate lifts from 0 to 6 inches, allowing for pinion angle correction, rear axle centering, and precise suspension tuning.
  • Rock Jock Johnny Joints for Maximum Flexibility – Featuring Johnny Joints at both ends, these control arms deliver superior articulation and responsiveness, providing smoother suspension movement over uneven terrain.
  • Precision-Engineered On-Vehicle Adjustability – Left and right-hand threaded adjusters allow fine-tuning without removal, making suspension modifications faster and easier.
  • Optional Bent Upper Control Arms for Additional Clearance – Need extra room around your gas tank skid plate? Opt for the bent rear upper control arms to optimize clearance and fitment.
  • Recommended Pairing – For a complete rear suspension upgrade, pair this kit with the Crawl Series Rear Track Bar (CRL-J-WK-RTB1) to fine-tune axle alignment and stability for maximum off-road performance.

Durable Two-Stage Powder Coating

Each control arm undergoes a two-stage powder coating process, featuring a corrosion-resistant zinc primer base coat and a top coat available in 10 colors. Ensures maximum protection against rust and wear while allowing you to customize the look of your suspension components.

Proudly Made in the USA

Manufactured in Orem, UT, our Crawl Series Rear Control Arm Set is built to top-tier American craftsmanship standards, ensuring superior reliability, precision, and strength.

Optional Hardware Upgrade

  • This kit is designed for straightforward bolt-on installation using factory hardware.
  • If you’re dealing with rusted or stubborn bolts, we offer optional Grade 8 hardware kits to ensure a seamless setup.

  • Vehicle Fitment: Jeep Grand Cherokee WK 05-10 – Improves rear axle stability, articulation, and suspension geometry for smoother handling on- and off-road.

  • CORE Advantage: Reduces driveline vibrations, enhances off-road flexibility, and maintains proper alignment with Johnny Joints at both ends for superior articulation.

  • Adjustability: Designed for 0 to 6-inch lifts, allowing precise pinion angle correction, axle centering, and on-vehicle adjustability for fine-tuning suspension without removal.

  • Construction: Built from 5/16” wall DOM tubing, with optional bent upper control arms for additional clearance, ensuring maximum durability and optimal fitment.

  • 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

Rear Lower Control Arms Built With 1.75” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends with 1.25” x 12 TPI - 2.625” long threads.

Rear Upper Control Arms Built With 1.5” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends with 1” x 14 TPI - 2.32” long threads.

Make Model Submodel Years
Jeep Grand Cherokee 2005 - 2010

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

Construction & Materials

Jeep Grand Cherokee WK 05-10 2pc Crawl Series Rear Lower Adjustable Control Arms

Rear Lower control arms built with 1.75” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends with 1.25” x 12 TPI - 2.625” long threads.

Jeep Grand Cherokee WK 05-10 2pc Crawl Series Rear Upper Adjustable Control Arms

Rear Upper control arms built with 1.5” OD 5/16” Wall DOM. Forged Johnny Joints on both adjustable ends with 1” x 14 TPI - 2.32” long threads.

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 Crawl Series
Gas Tank Skid Clearance Bend No Bend or Clearance Bend
Placement on Vehicle Rear Upper, Rear Lower, 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.

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Reviews of Core 4x4

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5.0
132 reviews
5
97%
4
2%
3
0%
2
1%
1
0%
TG
Travis Grimm Mar 23, 2024
Google
To start off if you're looking to upgrade your control arms definitely hit this company up. Great product, easy install of the product, with three different tiers everything is priced pretty good, I'm a sticker guy and they sent a sticker for each arm each track bar and also three extra ones so the extra are on the Jeep the advertise them for sure. If you're reading this review I highly recommend you to check their website out.
Review photo 1 Review photo 2 Review photo 3 Review photo 4
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.
CD
Christopher Dami Jun 26, 2025
Google
2022 I ordered a 2023 Jeep Wrangler Rubicon in High Velocity yellow. Without any hesitation I knew I was going with Core 4x4’s 16pc Camp series suspension, powder coated in yellow. Compliments were a given from any and everyone that looked under my jeep. So beefy, I may have left some yellow paint on the rocks from Maine to Florida, but no bends or breaks. Customer service has been perfect each and every time I have needed something. Their warranty is top notch! Their communication is also wonderful. Might upgrade to the Crawl Series control arms where the Johnny joints are on both sides. Great all around company and a great team to troubleshoot your issue and come to a conclusion. Nothing bad to say about this company. Just love this suspension.
Review photo 1 Review photo 2 Review photo 3
TH
Todd Hume Jan 22, 2026
Google
Their products are great but the service is even better!! Thanks Korby.
MH
mark hinz Mar 2, 2026
Google
Went above and beyond to get the parts we needed to complete our customers build for Moab Easter safari cant thank you enough for all your hard work and efforts Thank you and look forward to working with you in the near future
RD
Reagan D'mello Dec 23, 2025
Google
Love the product. Excellent customer support 👍🏽 …
KK
Kevin Kinard Oct 24, 2025
Google
Great product, excellent customer service. I mistakingly ordered a track bar for the wrong year model and Korby helped me out by sending me the correct part that I needed no questions asked. I highly recommend.
MH
Matthew Handy Sep 24, 2025
Google
Ran into an issue with a part that I ordered. Got ahold of them explained to them the issue I was having and they jumped in and got the issue fixed. Hands down the best customer service I have ever dealt with. The parts are hands down amazing. Highly recommend.
LS
Leonard Smith Jan 22, 2026
Google
I don’t write reviews often, but Core 4x4 absolutely earned this one. I recently ordered leaf spring mounts and realized after the fact that I messed up my order. Totally my mistake. Instead of giving me the runaround or pointing at a return policy, Core 4x4 emailed me back and forth, worked through exactly what I was doing with my build, and made sure I ended up with the correct parts. That kind of customer service is rare these days — especially in the off-road world where a lot of companies stop caring once the order is placed. The parts themselves are exactly what you hope for: solid, well-made, confidence-inspiring hardware that looks like it belongs under a vehicle that actually gets used. You can tell these are designed by people who understand suspension geometry and real-world abuse, not just CAD screenshots. Mistakes happen — especially on custom or modified builds — and Core 4x4 handled mine like pros. Fast responses, clear communication, and a genuine effort to help me get it right. If you’re on the fence: don’t be. Core 4x4 is the kind of company you want backing your build — the kind that treats customers like fellow enthusiasts, not order numbers.
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!

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 Crawl Series
Note to Core4x4: -
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