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856.76 856.76 USD 1,007.95

1,007.95

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Ford Bronco 21+ 4pc Crawl Series Rear Adjustable Control Arm Kit

SKU: CRL-F-BR-2021-RS4
Fits: 2021 - Present Ford Bronco Add vehicle

856.76 856.76 USD 1,007.95

1,007.95

Starting at $110/mo or 0% APR with . See if you qualify

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.

4–8 hr install Moderate Alignment recommended Lifetime warranty on all non-wear items Made In USA

Unmatched Flexibility Durability

Elevate your off-road performance with the Crawl Series Rear Control Arms Set, specifically designed for Ford Bronco model years 2021-Present. This set includes two upper (CRL-F-BR-2021-RU2) and two lower (CRL-F-BR-2021-RL2) control arms, offering a comprehensive upgrade that combines exceptional durability with unmatched flexibility. These control arms deliver superior handling and stability, enhancing your vehicle’s capabilities both on and off the road.

What's Included in the Kit

  • Crawl Series Upper Control Arms (CRL-F-BR-2021-RU2)
  • Crawl Series Lower Control Arms (CRL-F-BR-2021-RL2)

Superior Construction

Crafted from premium 5/16” wall DOM Tubing, our upper and lower control arms are built for strength and endurance. Featuring original Johnny Joints at both ends, these components deliver outstanding off-road articulation while maintaining durability and resilience, outperforming factory parts and other aftermarket options.

Easy Adjustability for Precision Alignment

Designed with left and right-hand threaded bodies, these control arms provide effortless adjustability. Fine-tune your suspension setup directly on the vehicle to achieve optimal axle centering and pinion angle adjustments. The Crawl Series Rear Control Arms Set accommodates lifts ranging from 0 to 6 inches, ensuring precise alignment and improved performance. For lifts beyond 6 inches, additional solutions are available upon request.

Durable Two-Stage Powder Coating

All control arms are subjected to a dual-layer powder coating process. Starting with a zinc primer for corrosion resistance, each arm is finished with a top coat in your choice of color from our palette of 10 options. This ensures a robust finish that resists harsh environmental conditions while allowing you to customize your vehicle's appearance.

Made in the USA

The Crawl Series represents the best in American craftsmanship. Manufactured in our Orem, UT facility using locally sourced materials, these control arms reflect CORE 4X4’s commitment to exceptional quality and performance while supporting American manufacturing.

Straightforward Installation

Installation is designed to be simple, using factory hardware for a seamless setup. For situations involving rusted or stubborn bolts, optional Grade 8 hardware kits are available separately to ensure a hassle-free process.

Key Features and Benefits

  • Premium 5/16” wall DOM Tubing for maximum strength and durability
  • Equipped with original Johnny Joints for superior articulation
  • Effortless adjustability with left and right-hand threaded bodies
  • Compatible with lifts ranging from 0 to 6 inches, with additional solutions available
  • Dual-layer powder coating for corrosion resistance and customization
  • Manufactured in the USA with high-quality, locally sourced materials
  • Simple installation using factory hardware, with optional hardware kits available

 

Make Model Submodel Years
Ford Bronco 2021 - Present

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

Vehicle Ford Bronco (21–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.
Series Crawl Series
Hardware No Hardware or Complete Kit
Lift Size 0" — 6" or 6"+

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%
AP
Ajay Paynter Mar 4, 2026
Google
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.
RC
Ryan Colligan Mar 4, 2026
Google
I have nothing but good things to say about Core 4x4. I have the crawler series on my JKU and we take it all over the place. These parts handle everything we throw at them.
MT
Marcus Torres Jan 15, 2026
Google
Best control arms I have installed on any of my builds. After running every major manufacturer, Core 4x4 is on par or better than all the high-end companies at a fraction of the cost. Lifetime warranty is the cherry on top.
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.
AL
Aaron Lake Apr 27, 2025
Google
Korby was a great help with getting me a set of leaf springs for my Cherokee. Great customer service and an awesome product all made in the USA. Proud to support and rock their parts on my vehicle. 👍 …
OJ
Oldgreg jr Mar 23, 2025
Google
Good company, they offer well built parts and Great customer service. I had a couple of hang ups with my control arms that I purchased, they were very easy to work with and found the solution to make them work.
MM
Mike Martinez Aug 25, 2025
Google
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!!
SH
Shawn Hooten Apr 27, 2025
Google
Great products, shipped the next day during a big sale event. Core 4x4 gets it right and gets it done! Thank you all.
RR
Ryan Rogers Aug 25, 2025
Google
I purchased a set of the Cruiser Series control arms for my Jeep Jk based on postive reviews from different Jeep Facebook pages. Ordered and 2 days later realized they had the very same exact arms on sale in the overstock section. Called them up and they refunded me the savings from my original purchase. Amazing, honest service. Can't wait to get them installed. Keep up the good work guys.
NP
Norb Pranger Oct 24, 2025
Google
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 :) .
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