JKS Adjustable Lower Control Arm Rubber (FRONT)

2007–2018 Jeep Wrangler JK 3.6L/3.8L V6

Part #: JKS1631

Overview

The JKS Adjustable Lower Control Arm Rubber (FRONT) is a precision-engineered suspension upgrade designed specifically for Jeep Wrangler JK models from 2007 to 2018 equipped with 3.6L and 3.8L V6 engines. These control arms enhance your vehicle’s off-road capability and on-road reliability by providing improved suspension geometry and alignment adjustability. Featuring premium rubber bushings pre-installed at both ends, they significantly reduce noise, vibration, and harshness (NVH), delivering a quieter and more controlled ride without sacrificing durability.

Ideal for Jeep enthusiasts who demand both performance and comfort, these adjustable control arms allow fine-tuning of suspension settings to accommodate lift kits, larger tires, or rough terrain, ensuring optimal handling and tire wear.

Key Features

Designed with durability and ease of use in mind, the JKS Adjustable Lower Control Arms offer the following key benefits:

• Factory-style, maintenance-free rubber bushings pre-installed to minimize NVH for a smoother, quieter ride
• Fully adjustable design to fine-tune suspension geometry and alignment for improved handling and tire wear
• CNC-bent from heavy-duty DOM (Drawn Over Mandrel) tubing for superior strength and rigidity
• Forged ends provide enhanced durability and resistance to off-road stresses
• Heavy-duty 1-1/4"-12 threads with hex-shaped weld-in bungs enable quick and secure adjustments
• Includes jam nuts for easy tightening and reliable locking of adjustments
• Durable powder-coated finish protects against corrosion and wear in harsh environments
• Sold in pairs to ensure balanced suspension performance on both sides

Construction & Design

Each control arm is meticulously crafted from stout DOM tubing, known for its superior strength and consistent wall thickness, ensuring long-lasting durability under demanding off-road conditions. The forged ends add an extra layer of toughness where it matters most, resisting deformation and wear from impacts and heavy loads. The factory-style rubber bushings are engineered to reduce noise and vibration while maintaining flexibility for suspension articulation.

The fully adjustable design incorporates heavy-duty threaded sections and hex-shaped weld-in bungs, allowing precise length adjustments to optimize suspension geometry. This adjustability is critical for maintaining proper caster and camber angles, especially when lifting the vehicle or upgrading tires. The entire assembly is finished with a resilient powder coat that guards against rust and corrosion, extending the lifespan of the control arms.

Installation & Fitment

Installation is straightforward and designed to fit directly onto 2007–2011 Jeep Wrangler JK 3.8L V6, 2012–2017 Jeep Wrangler JK 3.6L V6, and 2018 Jeep Wrangler JK 3.6L V6 models without the need for additional modifications. The adjustable nature of the arms allows for fine-tuning during installation to achieve optimal suspension alignment. These control arms are a direct replacement for factory components and come pre-assembled with bushings, reducing installation time and complexity.

What's Included

• Pair of JKS Adjustable Lower Control Arms (Front)
• Pre-installed factory-style rubber bushings at both ends
• Jam nuts for secure adjustment locking
• Installation hardware (where applicable)

Ideal For

This product is perfect for Jeep Wrangler JK owners seeking to improve suspension performance, especially those who have installed lift kits or larger tires and require precise alignment adjustments. It is also ideal for off-road enthusiasts who want to reduce cabin noise and vibration while maintaining rugged durability and control over challenging terrain.

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.