JKS Manufacturing Adjustable Rear Upper Control Arm

2007–2024 Jeep Wrangler JK/JL

JKS1639

Overview:

The JKS Manufacturing Adjustable Rear Upper Control Arm is engineered to enhance the off-road capability and reliability of your Jeep Wrangler JK (2007–2018) and JL (2018–2024). Designed for serious enthusiasts who demand precise suspension tuning, this control arm allows for fine adjustments to suspension geometry and alignment, improving handling and tire clearance. Featuring premium factory-style rubber bushings, it reduces noise, vibration, and harshness (NVH) for a quieter, more controlled ride both on and off the trail.

Whether you’re upgrading your suspension for rugged terrain or seeking improved drivability on-road, the JKS Adjustable Rear Upper Control Arm delivers durable performance with maintenance-free operation.

Key Features:

Built to meet the demands of off-road enthusiasts, this control arm offers a range of advanced features:

• Premium factory-style rubber bushings pre-installed at both ends for quiet, smooth operation and reduced NVH
• Fully adjustable design with forged adjustable flex ends and jam nuts for precise suspension tuning
• Heavy-duty 1-1/4"-12 threads and hex-shaped weld-in bungs enable quick and secure adjustments
• CNC-bent from durable DOM steel tubing for optimal strength and proper clearance around tires, frame, and axle mounts
• Powder-coated finish for long-lasting corrosion resistance and rugged durability
• Maintenance-free bushings engineered with specific durometer to dampen noise and vibration
• Sold in pairs to ensure balanced suspension performance

Construction & Design:

The control arms are crafted from stout DOM (Drawn Over Mandrel) steel tubing, CNC-formed to precise specifications that guarantee proper clearance and fitment. The forged adjustable ends provide exceptional strength and durability, capable of withstanding the rigors of off-road use. The powder-coated finish protects against corrosion and wear, ensuring longevity even in harsh environments. The inclusion of factory-style rubber bushings at both ends offers a maintenance-free solution that minimizes noise and vibration without sacrificing suspension articulation.

Installation & Fitment:

Installation is straightforward for anyone familiar with suspension upgrades. The adjustable design allows for fine-tuning of alignment and suspension geometry without the need for additional modifications. These control arms fit a wide range of Jeep Wrangler JK and JL models from 2007 through 2024, including popular trims such as Rubicon, Sahara, Sport, and Unlimited variants. No cutting or welding is required, making it an ideal upgrade for both professional installers and experienced DIYers.

What's Included:

• Pair of JKS Manufacturing Adjustable Rear Upper Control Arms
• Pre-installed premium rubber bushings at both ends
• Jam nuts and hardware for secure adjustment

Ideal For:

This product is perfect for Jeep owners looking to improve suspension performance, alignment, and ride quality. It is especially suited for off-road enthusiasts who require durable, adjustable components that reduce NVH while maintaining suspension articulation. Whether you’re tackling rocky trails, upgrading your suspension for larger tires, or seeking a smoother daily driving experience, these control arms provide the strength and precision needed for enhanced vehicle control.

JKS Manufacturing builds Jeep and off-road suspension parts—lift systems, control arms, track bars, disconnects, and supporting hardware—engineered for articulation and durability. It’s a popular choice for Wrangler and Gladiator owners looking to improve clearance, ride quality, and capability for real trail use.