Unmatched Off-Road Flexibility On-Road Stability
Upgrade your Toyota 4Runner (2003-Present) with the Crawl Series Rear Lower Control Arms, designed to provide exceptional strength, articulation, and durability. These control arms deliver a significant performance boost over factory components, ensuring maximum axle control, improved suspension geometry, and enhanced durability for both on-road and off-road adventures.
Key Features and Benefits
- Heavy-Duty DOM Tubing Construction – Built from 1.75” OD DOM Tubing with a 5/16” wall thickness, these control arms offer superior strength and durability compared to factory and aftermarket alternatives.
- Johnny Joints for Maximum Flexibility – Featuring Johnny Joints at both ends, these arms provide exceptional articulation, vibration dampening, and smooth operation on rough terrain.
- Left- and Right-Hand Threaded Adjustability – Designed for on-vehicle fine-tuning, these control arms allow for precise axle re-centering and pinion angle adjustments without needing to remove them.
- Fully Adjustable for Lifted Vehicles – Engineered to accommodate 0 to 6 inches of lift, allowing for optimal axle positioning and suspension geometry correction. For lifts beyond 6 inches, contact us for additional options.
- Recommended Pairing – Pair with the Crawl Series Rear Upper Control Arms (CRL-T-4R-03-RU2) for a complete rear-end solution, providing absolute control over axle centering, pinion angles, and suspension geometry.
Two-Stage Powder Coating for Maximum Protection
To ensure long-lasting durability and corrosion resistance, all control arms undergo a two-stage powder coating process: Zinc primer base coat for superior rust prevention. Durable top coat available in 10 custom colors for added protection and personalization.
Proudly Made in the USA
Manufactured in Orem, UT, the Crawl Series Rear Lower Control Arms are built to the highest standards of American craftsmanship. By choosing CORE 4X4, you’re investing in a locally made, high-quality product designed to withstand the most demanding conditions.
Optional Hardware Upgrade
Designed for easy installation using factory hardware. For those dealing with rusted or stubborn bolts, optional Grade 8 hardware kits are available separately for a hassle-free setup.
In Conclusion
The Crawl Series Rear Lower Control Arms (CRL-T-4R-03-RL2) are the ultimate suspension upgrade for Toyota 4Runner owners looking to improve axle control, suspension articulation, and overall durability. With on-vehicle adjustability, superior strength, and long-lasting performance, these control arms are built for extreme off-road conditions and smooth on-road handling. Upgrade today and experience the next level of performance!
| Make | Model | Submodel | Years |
|---|---|---|---|
| Toyota | 4Runner | 1996 - 2024 |
Each rebuild kit includes all necessary components to replace and restore wearable parts.
| Vehicle | Toyota 4Runner (96–24) |
| 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
Reviews from Google
5.0
★
★
★
★
★
132 reviews
AP
Ajay Paynter
Mar 4, 2026
★
★
★
★
★
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
★
★
★
★
★
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
★
★
★
★
★
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.
CL
Colten Lockwood
Mar 25, 2019
★
★
★
★
★
Recieved warrenty exchanges for my control arms last night couldnt be happier!!! Lets talk about the arms tho! Great quality arms in multiple styles and colors!!! I purchased the teir 3 short arns for my 98 xj. I can say that they setoff nicely so my 35 inch tires do not rub! As long as you can get a photo or video of broken hardware core will take care of you. The body of the arm is bulletproof. However make sure to maintain and grease the joints regularly as with any greaseable joint and they shouldkast forever. I had a few problems arise a year after purchase and after some troubleshooting spence was able to help get me the correct parts to get back on the road. I recommend this setup to any and all jeepers looking to get away from the stock arm setup. Alltogether i am Very happy with the performace of my control arms!!!! Mechanic and bodyman of 12 years and my first choice for quality control arms!!
MD
Mark DiGrappa
Apr 27, 2025
★
★
★
★
★
First off: Korby, the gentleman that helped me decide on which kit to go with is EASILY the nicest, and most patient person I’ve dealt with, when ordering parts for this build. Second: the quality of the product is INSANE! These parts are so nicely fabricated, then powder coated for extra longevity, and they even offer an aluminum upgrade in some cases (which I went with, to save weight). Having said all of this, the most impressive thing was the lead time. These parts are build to order, and I literally ordered my suspension one week ago, today! Yes, they built, powder coated, packaged, shipped my suspension components (RAM 1500 Track rear trailing arm full set in 7075 aluminum, and front upper control arms), AND they arrived, all within a week! Granted, that I’m only one state away, but WOW!!! One week?! Amazing! So, in sort: excellent products, which arrived excellently packaged (no damage, an boxes not over-stuffed with heavy suspension parts; three boxes total, as opposed to one super heavy one…my back thanks you), super quickly, and customer service that ANY business would be envious of….so, if you’re in the market, absolutely go with Core 4X4!
DD
Dmitriy D
May 27, 2025
★
★
★
★
★
Installed rear and upper control arms and track bar on my 3rd Gen 4RUNNER to align rear axle and restore factory wheel base after 3.5" lift. Car drives better than New! Improved handling cornering and overall driving. Very solid and high quality made product. Support is outstanding. Shipping extremely fast.
Thank you so much. I wish you will have something new for my car.
JF
jacob fezza
Mar 24, 2022
★
★
★
★
★
I wanted to take a moment and give these guys a shout out, I’ve currently got, for my xj, their adjustable control arms, tier 4 adjustable track bar and adjustable leaf spring shackles. You can always count on a fair price, high quality products, and quick delivery. Keep up the great work guys, will definitely continue to shop with you
CD
Christopher Dami
Jun 26, 2025
★
★
★
★
★
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.
MR
Melanee Raynes
Mar 25, 2019
★
★
★
★
★
Awesome product and service! I even got some of their swag because it looked pretty darn good. I will definitely be going back and would suggest this business to others looking for quality control arms. Buy local!
VK
Victor Keele
Sep 24, 2025
★
★
★
★
★
Great customer service. I got my front upper and lower control arms and hardware on Friday afternoon. It didn’t come with instructions so I called Core 4X4 and they immediately e mailed me the instructions. Also, the kit I got had the spacers missing so I called. It was late Friday by thus time but they took care of the issue first thing Monday morning and I got the spacers on Tuesday. Great company.
