RockJock RockNut Rear Lower Billet Aluminum Control Arms

2007–2026 Jeep Wrangler (excl. 392) Various Engines

Part #: RJ-142602-101

Overview

The RockJock RockNut Rear Lower Billet Aluminum Control Arms are engineered specifically for Jeep Wrangler models from 2007 through 2026, excluding the 392 variant. Designed to replace factory control arms, these heavy-duty, double adjustable arms provide precise alignment capabilities essential for lifted vehicles. Whether you own a JL, JK, or Unlimited Wrangler, these control arms allow you to maintain optimal pinion angle and suspension geometry with ease.

Featuring RockJock’s innovative RockNut locking nut technology and robust Johnny Joints, these control arms are built for durability and adjustability. They are ideal for off-road enthusiasts and Jeep owners seeking enhanced suspension performance and alignment flexibility without the hassle of removing the arms for adjustments.

Key Features

These rear lower control arms combine advanced engineering with practical features to deliver superior performance and convenience:

• Double adjustable design allows length changes from both ends without removal
• CNC machined from high-strength 7075-T6 billet aluminum for exceptional durability
• Patent-pending RockNut locking nut technology ensures secure, vibration-resistant adjustments
• Equipped with 2 1/2 inch Johnny Joints featuring massive 1 1/4 inch right-hand and left-hand threads
• Fully greasable joints for extended service life and smooth operation
• Machined-in wrench flats simplify adjustment with standard tools
• Clear anodized finish on arms for corrosion resistance and sleek appearance
• Gold zinc plating on Johnny Joint ends enhances corrosion protection

Construction & Design

RockJock utilizes premium 7075-T6 billet aluminum, a material known for its high strength-to-weight ratio and excellent fatigue resistance, ensuring these control arms withstand the rigors of off-road use. The CNC machining process guarantees precise tolerances and consistent quality across each arm. The RockNut locking nut system is a unique feature that prevents loosening under extreme conditions, maintaining alignment settings reliably.

The Johnny Joints incorporated in these arms are oversized and robust, providing smooth articulation and durability. Their greasable design allows for easy maintenance, extending the lifespan of the joints even in harsh environments. The combination of clear anodizing and gold zinc plating offers superior corrosion resistance, keeping the control arms looking and performing great over time.

Installation & Fitment

Installation of the RockJock RockNut Rear Lower Control Arms is straightforward for experienced mechanics and off-road enthusiasts familiar with suspension work. These arms are designed to directly replace factory rear lower control arms on Jeep Wrangler models from 2007 to 2026, excluding the 392 engine variant. No major modifications are required, and the double adjustable feature allows for fine-tuning pinion angles and suspension geometry without removing the arms from the vehicle.

Proper alignment after installation is recommended to ensure optimal driveline angles and suspension performance, especially on lifted vehicles. These control arms are compatible with a wide range of Jeep Wrangler engines, including 3.8L V6, 3.6L V6, 2.0L Turbo, 3.0L EcoDiesel, and 6.4L 392 (except for the 392 exclusion noted).

What's Included

• Set of two RockJock RockNut Rear Lower Billet Aluminum Control Arms
• Fully greasable Johnny Joints with gold zinc plating
• RockNut locking nuts installed
• Installation instructions

Ideal For

This control arm set is perfect for Jeep Wrangler owners who have lifted their vehicles and require precise suspension adjustments to maintain proper pinion angles and alignment. Off-road enthusiasts, trail riders, and anyone looking to upgrade from factory control arms to a more durable, adjustable solution will benefit from these arms. They provide enhanced suspension articulation, improved durability, and ease of adjustment, making them a valuable upgrade for serious Jeep Wrangler builds.

RockJock 4x4 by John Currie develops trail-proven suspension and steering components for Jeeps and modern off-road platforms, including complete lift systems and the well-known AntiRock sway bar setups. Built around durable, articulation-friendly designs, RockJock is a go-to for enthusiasts who want confident road manners and real capability when the terrain gets technical.