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!