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218.62 218.62 USD 257.20

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Toyota 4Runner 03-24 2pc Cruise Series Rear Upper Adjustable Control Arms

SKU: CRS-T-4R-03-RU2
Fits: 1996 - 2024 Toyota 4Runner Add vehicle

218.62 218.62 USD 257.20

257.20

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.
  • 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.

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

Optimize Pinion Angle and Maximize Drivetrain Efficiency

Upgrade your Toyota 4Runner’s rear suspension with the Cruise Series Rear Upper Control Arms, engineered for precise axle positioning, improved handling, and drivetrain vibration reduction. Designed for model years 2003-Present, these fully adjustable control arms allow for proper pinion angle correction, reducing driveline vibrations while optimizing rear suspension performance.

What’s Included in the Kit?

  • Cruise Series Rear Upper Control Arms (CRS-T-4R-03-RU2)

Key Features and Benefits

  • Precision Pinion Angle Adjustment – Corrects driveline geometry, reducing driveline vibrations and optimizing rear axle alignment.
  • Full Axle Control When Paired with Rear Lower Control Arms – Combine with Cruise Series Rear Lower Control Arms (CRS-T-4R-03-RL2) for complete control over axle positioning, ensuring proper articulation and alignment.
  • Adjustability for a Perfect Fit – Designed for 0 to 6-inch lifts, allowing for axle recentering and optimized suspension geometry.
  • Tapered Polyurethane Bushings – Reduces noise, vibration, and harshness (NVH) for a smoother ride and longer-lasting durability.
  • Heavy-Duty Construction – Fabricated from robust steel tubing, ensuring maximum strength and off-road durability.

Pinion Angle Correction for Reduced Driveline Vibrations

Lifting your vehicle alters the rear pinion angle, often leading to increased driveline vibrations and excessive wear on the U-joints. The Cruise Series Rear Upper Control Arms allow precise pinion angle adjustments, minimizing unwanted vibration and ensuring optimal drivetrain efficiency.

Two-Stage Powder Coating for Maximum Durability

Each Cruise Series Rear Upper Control Arm undergoes a two-stage powder coating process for superior corrosion resistance and long-term durability: Zinc primer base coat – Provides maximum rust protection. Durable top coat – Available in 10 color options, allowing for added customization and style.

Proudly Made in the USA

The Cruise Series Rear Upper Control Arms are manufactured in Orem, UT, using high-quality domestic materials. Our commitment to precision craftsmanship ensures reliable performance and unmatched durability.

Optional Hardware Upgrade

Designed for easy installation using factory hardware, these control arms can also be installed with our optional Grade 8 hardware kits, available separately, to simplify installation on vehicles with rusted or stubborn bolts.

In Conclusion

The Cruise Series Rear Upper Control Arms are an essential upgrade for Toyota 4Runner owners looking to eliminate driveline vibrations, optimize pinion angles, and improve axle control. When paired with Cruise Series Rear Lower Control Arms, this setup provides complete rear suspension control, ensuring maximum strength, improved articulation, and superior handling on and off the road.

Upgrade your 4Runner’s suspension today for a smoother, more controlled, and off-road-ready driving experience!


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.
Hardware No Hardware or Complete Kit
Series Cruise Series

See It Installed

Install videos and build guides on our YouTube channel.

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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.
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!!
JS
Jon Stempien May 27, 2025
Google
Big thanks to Corby at core 4 x 4 outstanding customer service I like to thank them or 4 x 4 for helping me Well-made product in the United States recommend core 4 x 4 for all jeep Owners that like the four wheel
JF
jacob fezza Mar 24, 2022
Google
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
TD
Tim Davis Sep 24, 2025
Google
Customer service is amazing, responds fast and know what they are talking about. Their product looks top of the line.
A
Adam Oct 24, 2025
Google
I couldn't have been more excited for the initial unboxing of these new Core 4x4 UCA's! They appear to be so well built and just a true quality product. Installation was a breeze and the initial testing with the forklift appears to have given me some additional flex with less binding on the rest of the components now that the geometry is back properly aligned. Time will tell how they hold up on my near future off-road adventures but I don't have any doubt that they are up to the task!
AP
Ajay Paynter Mar 9, 2026
Google
Great company, who worked with me on shipping parts, to arrive in time for a show, when I explained my concern of possibly not getting the control arms in time. Quality is amazing on the part, affordable price for what you get, and the powdercoat is top notch, not a single issue with this product, would buy again.
N
niceguyr1 Mar 24, 2023
Google
I purchased upper and lower adjustable arms for my WJ and lowers were missing the spacers. I didn't know until 3 months later when I was installing them. With absolutely zero hassles they quickly sent me the missing spacers. Fantastic product and service! Huge thank you guys for the awesome service and parts!!! Customer service is quickly becoming a lost commodity and you guys gave me hope that it's still alive and well, you just have to buy from the right people... Thanks again for going above and beyond! 👍👍
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