Precision Control for Pinion Angle Rear Axle Alignment
Maximize your Ram 1500’s performance with the Trail Series Adjustable Rear Upper Control Arms, engineered to fine-tune rear axle alignment and pinion angle adjustments. Designed to work in conjunction with our lower rear control arms, this setup ensures maximum traction, stability, and drivetrain efficiency across all terrains—from highways to rugged off-road trails.
What’s Included?
Trail Series Adjustable Rear Upper Control Arms (TRL-R-15-2009-RU2)
Key Features Benefits
- Heavy-Duty DOM Tubing Construction – Built from 1.75" OD, .313" wall DOM tubing for exceptional strength and durability.
- Polyurethane Johnny Joint Combo – Features high-grade polyurethane bushings at the fixed ends for reduced NVH (Noise, Vibration, and Harshness) and Rock Jock Johnny Joints at the adjustable ends for maximum articulation and flexibility.
- Pinion Angle Adjustment for Driveline Efficiency – Adjustable to correct pinion angle, reducing driveline vibrations and premature wear for a smoother power transfer and extended drivetrain life.
- Recommended Pairing – For complete rear suspension control, pair with Trail Series Adjustable Rear Lower Control Arms (TRL-R-15-2009-RL2) to eliminate wheel hop, optimize suspension geometry, and maintain proper axle alignment.
Eliminate Driveline Vibration Improve Rear Suspension Control
Factory upper control arms lack adjustability, making pinion angle corrections impossible after lifting or lowering your truck. By installing adjustable upper control arms, you eliminate vibration-causing misalignment, ensuring smooth acceleration, extended U-joint life, and optimal drivetrain efficiency. When paired with adjustable lower control arms, you gain full control over axle positioning, reducing suspension flex and eliminating wheel hop.
Highly Durable Two-Stage Powder Coating
- Zinc primer base coat for maximum rust resistance
- Durable topcoat available in 10 color options for a customized look
Optional Hardware Upgrade
Designed for installation using factory hardware, but for enhanced durability and a secure installation, we offer an optional Grade 8 hardware kit (sold separately).
Proudly Made in the USA
Manufactured in Orem, UT, every CORE 4X4 component meets strict quality control standards for precision, strength, and long-term durability.
Final Thoughts
The Trail Series Adjustable Rear Upper Control Arms are a must-have upgrade for lifted or lowered Ram 1500 owners looking for driveline stability, reduced vibration, and enhanced suspension control. Pairing these with adjustable lower control arms provides total control over axle alignment, ensuring your truck stays planted and smooth under all conditions.
Upgrade today and take full control of your suspension and drivetrain performance!
Vehicle Fitment: Designed for Ram 1500 09+, these rear upper control arms optimize pinion angle and axle alignment, improving traction, stability, and drivetrain efficiency for daily driving and off-road use.
CORE Advantage: Eliminates driveline vibrations and enhances power transfer with precision adjustability, while a combination of polyurethane bushings and Johnny Joints reduces NVH and maximizes articulation.
Adjustability: Adjustable for proper axle alignment and suspension geometry, supporting up to a 6-inch lift or 6-inch drop for improved handling and stability.
Construction: Built from 1.75” OD 5/16” wall DOM tubing with Rock Jock Johnny Joints at the adjustable ends and polyurethane bushings at the fixed ends, ensuring durability, articulation, and long-lasting 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 arm built with 1.75” OD 5/16” Wall DOM. A Polyurethane Bushing on the fixed end and a Forged Johnny Joint on the adjustable end with 1.25” x 12 TPI - 2.625” long threads.
| Make | Model | Submodel | Years |
|---|---|---|---|
| Ram | 1500 | 2009 - Present |
Each rebuild kit includes all necessary components to replace and restore wearable parts.
Construction & Materials
Rear Lower control arm built with 1.75” OD 5/16” Wall DOM. A Polyurethane Bushing on the fixed end and a Forged Johnny Joint on the adjustable end with 1.25” x 12 TPI - 2.625” long threads.
| Vehicle | Ram 1500 (09–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 | Trail Series |
| Lift Size | 0" — 6" or 6"+ or -6" — -1" |
| Hardware | No Hardware or Complete Kit |
| Factory Air Ride | No or Yes |
| Year Range | 09+ |
| Placement on Vehicle | Rear Upper, Rear |
| Mounting Style | Bolt-On |
Reviews of Core 4x4
Accessories & Add-ons
Ram 1500 09+ 5pc Trail Series Rear Adjustable Control Arms, Panhard/Track Bar Kit
$ 997.45
Ram 1500 09+ 7pc Trail Series Rear Adjustable Control Arm, Track Bar, End Link Kit
$ 1,154.95
Ram 1500 09+ 2pc Trail Series Rear Lower Adjustable Control Arms
$ 398.95
Ram 1500 09+ 4pc Trail Series Rear Adjustable Control Arm Kit
$ 713.95Specifications
| 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. |
| Lift Size | 0" — 6", 6"+, -6" — -1" |
| Hardware | No Hardware, Complete Kit |
| Factory Air Ride | No, Yes |
| Vehicle | Ram 1500 (09–Present) |
| Brand | CORE 4X4 |
| Series | Trail Series |
| Year Range | 09+ |
| Note to Core4x4: | - |
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