RockJock Antirock Sway Bar Kit

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

Part #: RJ-236200-101

Overview

The RockJock JK Antirock Sway Bar Kit is engineered specifically for the rear suspension of Jeep Wrangler JK models from 2007 through 2018 equipped with 3.6L or 3.8L V6 engines. Designed for both overlanders and racers, this heavy-duty sway bar kit significantly enhances rear suspension stability and traction under demanding off-road conditions. Whether you’re carrying heavy camping gear, rooftop tents, or tackling desert racing terrain, this sway bar kit provides a more controlled and balanced ride by increasing the rear sway bar rate.

By improving weight distribution and traction across all four tires, the Antirock sway bar system helps maintain vehicle stability and driver confidence on rugged trails. When paired with a front Antirock sway bar, it delivers a well-balanced suspension setup that reduces body roll and improves overall handling performance.

Key Features

This rear sway bar kit offers robust construction and performance benefits tailored to serious off-road enthusiasts:

• Heavy-duty 1.125-inch diameter sway bar with 28 splines for increased torsional stiffness
• Forged arms designed for maximum strength and durability
• Constructed from 4130 heat-treated chromoly steel, the same material used in professional off-road competition
• Direct bolt-on replacement for the factory rear sway bar with no modifications required
• Improves rear suspension rate to handle additional weight from racks, tents, and gear
• Enhances traction by balancing weight transfer across all four tires
• Compatible with all 2007–2018 Jeep Wrangler JK models equipped with 3.6L or 3.8L V6 engines
• Ideal for overlanding, desert racing, and heavy-load off-road applications

Construction & Design

The RockJock Antirock sway bar is crafted from premium 4130 chromoly steel, renowned for its exceptional strength-to-weight ratio and resistance to fatigue. This heat-treated alloy steel is widely used in professional off-road racing components, ensuring the sway bar withstands the rigors of extreme terrain and heavy loads. The forged arms provide additional durability and precision fitment, contributing to a reliable and long-lasting suspension upgrade.

The 28 spline design of the sway bar shaft enhances torsional rigidity, allowing it to resist twisting forces better than stock sway bars. This results in improved suspension articulation and a more stable ride, especially when navigating uneven surfaces or carrying substantial cargo.

Installation & Fitment

The RockJock JK Antirock Sway Bar Kit is designed for straightforward installation using common hand tools. It directly replaces the factory rear sway bar without the need for drilling, cutting, or other modifications. This ensures a hassle-free upgrade that maintains factory mounting points and suspension geometry.

Fitment covers all Jeep Wrangler JK models from 2007 to 2018 equipped with either the 3.6L or 3.8L V6 engines, making it a versatile choice for a wide range of JK owners seeking enhanced rear suspension performance.

What's Included

• 1.125-inch diameter 28 spline chromoly sway bar
• Forged sway bar arms
• All necessary mounting hardware
• Installation instructions

Ideal For

• Jeep Wrangler JK owners who frequently carry heavy gear such as roof racks and rooftop tents
• Off-road enthusiasts seeking improved rear suspension stability and traction
• Desert racers requiring a more robust sway bar to handle high-speed terrain
• Overlanders looking for a durable, long-lasting suspension upgrade
• Anyone wanting a direct bolt-on replacement that enhances vehicle handling without complex installation

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.