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4pc Cruise Series Rear Adjustable Control Arm Kit

Jeep Wrangler JL / JLU 18+ 4pc Cruise Series Rear Adjustable Control Arm Kit
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419.96 419.96 USD 524.95

524.95

(Save 20%)

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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://core4x4.com/web/image/product.template/2124/image_1920?unique=edc8f61

4pc Cruise Series Rear Adjustable Control Arm Kit

Jeep Wrangler JL / JLU 18+ 4pc Cruise Series Rear Adjustable Control Arm Kit
SKU: CRS-J-JL-RS4
Pick your vehicle to confirm fit

419.96 419.96 USD 524.95

524.95

(Save 20%)

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.
  • 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.
  • 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

Complete Rear-End Suspension Control

Upgrade your Jeep Wrangler JL (2018-Present) with the Cruise Series Rear Control Arm Set, engineered to restore alignment, re-center the rear axle, and eliminate driveline vibrations caused by improper pinion angles.

This comprehensive rear-end solution replaces weak factory components with stronger, adjustable control arms, ensuring on-road stability and off-road durability.

Key Features and Benefits

  • Heavy-Duty Steel Tubing Construction – Built for maximum strength and durability, ensuring your suspension can handle the toughest conditions.
  • Precision Adjustability – Corrects alignment, re-centers the rear axle, and restores proper pinion angle, accommodating lifts from 0 to 6 inches.
  • Eliminates Driveline Vibrations – Adjustable upper control arms allow for precise pinion angle correction, reducing stress on the driveshaft and eliminating unwanted vibrations.
  • Tapered Polyurethane Bushings – Reduces vibration, improves articulation, and enhances ride quality over standard rubber bushings.
  • Improved Ride Stability – Addresses rear-end instability, excessive movement, and tire wear, ensuring a smoother ride on and off the road.
  • Recommended Pairing for a Complete Suspension Solution – For full rear-end alignment and handling improvements, pair with our Cruise Series Rear Track Bar (CRS-J-JL-RTB1).

Two-Stage Powder Coating for Maximum Protection

To ensure long-lasting durability, every control arm undergoes a two-stage powder coating process: Zinc Primer Base Coat – Prevents rust and corrosion, ensuring protection in harsh environments. Customizable Top Coat – Choose from 10 available colors to match your vehicle’s aesthetics and add a personal touch.

Made in the USA

Proudly manufactured in Orem, UT, our Cruise Series Rear Control Arm Set is built with the highest standards of American craftsmanship, ensuring consistent, reliable performance in all driving conditions.

Optional Hardware Upgrade

  • Our Cruise Series Rear Control Arm Set is designed for easy installation using factory hardware.
  • However, for those dealing with rusted or stubborn bolts, we offer optional Grade 8 hardware kits, available separately to ensure a secure and hassle-free installation.

Whether you're tackling rugged trails or daily commuting, these control arms deliver the strength and adjustability your Jeep JL needs.

Upgrade today and experience better ride stability, reduced tire wear, and a vibration-free driving experience with CORE 4X4’s Cruise Series Rear Control Arm Set!


  • Vehicle Fitment: Jeep Wrangler JL 18+ – Enhances rear suspension performance by correcting axle alignment, improving handling, and eliminating driveline vibrations.

  • CORE Advantage: Fully adjustable upper and lower control arms allow precise rear axle positioning and pinion angle correction, ensuring a smoother ride and reduced drivetrain stress.

  • Adjustability: Designed for lifts from 0 to 6 inches, this set re-centers the axle, fine-tunes alignment, and restores proper suspension geometry for improved drivability.

  • Construction: Built from heavy-duty steel tubing with tapered polyurethane bushings for durability, vibration reduction, and long-lasting suspension performance.

  • 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 1.875” OD 3/16” Wall DOM. Polyurethane Bushings on the fixed and adjustable ends with 1.25” x 12 TPI - 3.25” long threads.

Rear Upper Control Arms Built With 1.625” OD 3/16” Wall DOM. Polyurethane Bushings on the fixed and adjustable ends with 1” x 14 TPI - 3.25” long threads.

Make Model Submodel Years
Jeep Wrangler 2018 - Present

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

Construction & Materials

Jeep Wrangler JL / JLU 18+ 2pc Cruise Series Rear Lower Adjustable Control Arms

Rear Lower control arms built with 1.875” OD 3/16” Wall DOM. Polyurethane Bushings on the fixed and adjustable ends with 1.25” x 12 TPI - 3.25” long threads.

Jeep Wrangler JL / JLU 18+ 2pc Cruise Series Rear Upper Adjustable Control Arms

Rear Upper control arms built with 1.625” OD 3/16” Wall DOM. Polyurethane Bushings on the fixed and adjustable ends with 1” x 14 TPI - 3.25” long threads.

Vehicle Jeep Wrangler JL / JLU (18–Present)
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.
Hardware No Hardware or Complete Kit
Series Cruise Series
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.

Google

Reviews of Core 4x4

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5.0
132 reviews
5
97%
4
2%
3
0%
2
1%
1
0%
TH
Todd Hume Jan 22, 2026
Google
Their products are great but the service is even better!! Thanks Korby.
M
Matt Mar 23, 2024
Google
The best products on the market. 95% of my xj is core 4x4 products
EA
Eric Ahonen Mar 24, 2021
Google
Awesome control arms! My mechanic said “ your Jeep is pretty much bulletproof now.” And I just got the tier 1 arms! The people at the core 4x4 shop were really nice too. They were running behind on shipping, (which is understandable) so I decided to go pick it up because it was only an hour drive. They gave me a free $60 hardware kit for the inconvenience. Thanks core 4x4! You guys are awesome!!
JJ
Jason Jukich Jul 26, 2025
Google
Fast shipping, excellent communication, and awesome products
JS
Jeffrey Shafer Jan 22, 2026
Google
Exceptional customer service. All my questions were asked in a timely manner and parts were replaced when an error occured. I encourage people to make purchases due to their exceptional quality products, but also because of their customer service. Will make additional purchases in the future.
RD
Reagan D'mello Dec 23, 2025
Google
Love the product. Excellent customer support 👍🏽 …
D
David Nov 23, 2025
Google
First of I just want to say Great customer service korby Has helped me from the start and has not let me down! Reached out to him again today and he was able to warranty some parts out for me. As far as the quality of the parts.. excellent! The build quality is great. I can definitely tell a Difference from the cheap oem rear control arms to these and the pan hard bar. Color, From what I can tell it’s super durable been through a few mud holes on top of the daily road grime and after a quick wipe they still pop! Overall I recommend. Customer service is everything for me and it’s definitely there at Core 4x4.
TW
Travis Walker Sep 24, 2025
Google
I have nothing but great things to say about this company and their customer service. If you like American made products backed by warranty and amazing customer support, this is the company for you. I have a Lexus GX470 and love their rear control arms.
Review photo 1 Review photo 2
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.
J
Justin Mar 24, 2021
Google
Small business, family owned, made in the USA, lifetime warranty. Purchased Tier 3 control arms and rear track bar for a 2006 Jeep LJ. Simple website and easy to contact over phone and email. I had some technical questions and they were happy to answer them. They allow local pickup and were built to order same week. The order was wrapped and ready when I walked in and even gave a tour of the shop. They abrasive blast all raw materials to achieve a better surface profile for powdercoat to adhere and create a smooth, durable finish. I also noticed several CNC machines and a robotic welder they use for all their parts. A small outfit with a robotic welder? Their concern for quality is obvious and it shows in the parts they make. Very impressed. Happy to do business with these guys.
Review photo 1

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
Vehicle Jeep Wrangler JL / JLU (18–Present)
Brand CORE 4X4
Series Cruise Series
Note to Core4x4: -
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