Heavy-Duty Performance for Maximum Strength and Versatility
Upgrade your 2021-Present RAM TRX with CORE 4X4 7075 Aluminum Rear Lower Control Arms (R-TRX-2021-AL-RL2)—the pinnacle of strength, adjustability, and durability for high-performance trucks. Built to withstand the extreme power and suspension demands of the TRX, these control arms provide exceptional handling, unmatched articulation, and extreme resilience, making them the ultimate upgrade for towing, hauling, and aggressive off-road driving. These lower control arms are engineered to handle the uncompromising power and size of the RAM TRX, ensuring a stronger, smoother, and more controlled ride in any terrain.
Key Features and Benefits
- Heavy-Duty 7075 Aluminum Construction – Crafted from massive 2.5" OD 7075 aluminum, offering unmatched strength, longevity, and weight savings.
- Rock Jock 3.0" Johnny Joints for Maximum Flex – Equipped with 1.5" threaded, greaseable, and fully rebuildable joints for superior articulation and smooth operation.
- On-Vehicle Adjustability for Precision Tuning – Machined with wrench flats for effortless axle positioning and pinion angle correction without removal.
- Optimized for High-Horsepower, High-Speed Off-Roading – Designed to handle extreme torque loads, heavy towing, and aggressive off-road terrain while maintaining precise alignment and control.
Recommended Pairing
For complete axle control, pair with Adjustable Rear Upper Control Arms (R-TRX-2021-AL-RU2) to achieve full suspension adjustability and optimal drivability.
Superior Construction for Unrivaled Durability
Our 7075 aluminum rear lower control arms are built to withstand high-speed desert running, extreme articulation, and heavy payloads without sacrificing ride quality. Featuring Rock Jock’s massive 3.0" Johnny Joints, these control arms provide:
Maximum articulation for smoother off-road suspension cycling.
Increased flexibility for maintaining precise wheel alignment under load.
Ultimate strength for improved control, tracking, and shock absorption.
Whether you're soaking up high-speed whoops, towing heavy trailers, or crawling through rugged terrain, these control arms ensure superior performance in every scenario.
Two-Stage Powder Coating for Maximum Durability
To ensure exceptional corrosion resistance and long-lasting reliability, all aluminum components undergo a two-stage powder coating process:
Zinc primer base coat for superior rust protection.
Top coat available in 10 colors to match your truck’s aesthetics and ensure maximum durability.
Proudly Made in the USA
Manufactured in Orem, UT, our CORE 4X4 7075 Aluminum Rear Lower Control Arms are built using high-quality, American-sourced materials under strict quality control standards. Supporting American manufacturing means investing in superior craftsmanship and unmatched reliability.
Vehicle Fitment: RAM TRX 21+ – A game-changing suspension upgrade designed for the ultimate in high-speed off-roading, towing, and heavy-duty applications. These rear lower control arms deliver maximum handling, strength, and resilience for your TRX.
CORE Advantage: Constructed from 7075 aluminum, this set ensures enhanced steering precision and articulation. The aluminum’s memory allows for flex under impact and return to shape, providing unbeatable durability without permanent damage, ensuring smooth operation even in extreme conditions.
Adjustability: On-vehicle adjustability allows for precise axle centering and pinion angle correction. Tailor your suspension setup for optimal performance whether you’re navigating tough terrain, towing, or pushing your TRX to its limits off-road.
Construction: Built from massive 2.5” OD 7075 aluminum, this set offers maximum strength while reducing weight. With Rock Jock 3.0” Johnny Joints and two-stage powder coating, these control arms provide long-lasting durability, superior flexibility, and improved ride quality.
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 2.5” 7075 Aluminum. Forged Johnny Joints used on both adjustable ends with 1.5” x 12 TPI - 3.67” long threads.
| Make | Model | Submodel | Years |
|---|---|---|---|
| Ram | TRX | 2021 - 2024 |
Construction & Materials
Rear Lower control arms built with 2.5” 7075 Aluminum. Forged Johnny Joints used on both adjustable ends with 1.5” x 12 TPI - 3.67” long threads.
| Vehicle | Ram TRX (21–24) |
| Brand | CORE 4X4 |
| Color | Black or Blue or Charcoal or Green or LightGreen or Orange or Purple or Red or White or Yellow or Raw Aluminum or Custom Color - Other than what is listed above. Extra charge varies. We will reach out after order is placed. |
| Placement on Vehicle | Front 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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Specifications
| Color | Black, Blue, Charcoal, Green, LightGreen, Orange, Purple, Red, White, Yellow, Raw Aluminum, Custom Color - Other than what is listed above. Extra charge varies. We will reach out after order is placed. |
| Vehicle | Ram TRX (21–24) |
| Brand | CORE 4X4 |
| Note to Core4x4: | - |
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