RockJock Front Coil Springs

2005–2010 Jeep Grand Cherokee, 2007–2018 Jeep Wrangler, 2018–2026 Jeep Wrangler / Gladiator

RJ-154101-101

Overview:

The RockJock Front Coil Springs deliver a precise 3.5-inch lift designed specifically for a wide range of Jeep Wrangler and Gladiator models, as well as select Jeep Grand Cherokee years. Engineered to replace factory springs directly, these coil springs are ideal for Jeep enthusiasts seeking enhanced ground clearance and improved suspension performance without compromising ride quality. Whether you drive a JL Wrangler Unlimited with EcoDiesel, 392 Hemi, or 4XE powertrains, or a JT Gladiator equipped with the 3.6L gas engine, these springs provide a balanced lift that complements your vehicle’s capabilities both on and off-road.

Developed through extensive research by RockJock, these springs offer an optimized spring rate that delivers a comfortable ride on pavement while maintaining excellent articulation and control over rough terrain. They are compatible with RockJock Johnny Joint suspension systems and other lift kits, making them a versatile upgrade for Jeep owners looking to enhance their vehicle’s stance and off-road readiness.

Key Features:

Designed for Jeep Wrangler and Gladiator models from 2005 through 2026, the RockJock Front Coil Springs offer the following benefits:

• 3.5-inch front lift for improved ground clearance and approach angles
• Direct factory spring replacement for straightforward installation
• Optimized spring rate for a balanced combination of comfort and off-road performance
• Gloss black powder coat finish for durability and corrosion resistance
• Compatible with RockJock Johnny Joint suspension systems and other lift kits
• Engineered specifically for Jeep JL Wrangler Unlimited EcoDiesel, 392 Hemi, 4XE, and JT Gladiator 3.6L gas engine models
• Enhances height control and suspension articulation
• Extensively tested for quality and reliability in demanding off-road conditions

Construction & Design:

RockJock coil springs are crafted from high-grade steel alloys selected for strength and durability under extreme conditions. The springs undergo a precise manufacturing process to achieve the ideal spring rate, ensuring consistent performance and longevity. The gloss black powder coat finish not only provides a sleek appearance but also protects against rust and environmental wear, extending the life of the springs even in harsh off-road environments.

Each spring is engineered to maintain proper suspension geometry and ride height, preserving factory handling characteristics while delivering the added lift. This attention to detail ensures that your Jeep maintains excellent stability and control both on highways and rugged trails.

Installation & Fitment:

These front coil springs are designed as direct replacements for the factory springs on compatible Jeep models, allowing for a relatively straightforward installation process. They fit a broad range of Jeep vehicles, including:

• 2005–2010 Jeep Grand Cherokee
• 2007–2018 Jeep Wrangler
• 2018–2026 Jeep Wrangler (including JL Unlimited EcoDiesel, 392 Hemi, 4XE)
• 2018–2026 Jeep Gladiator (3.6L gas engine models)

Installation typically requires standard suspension tools and may be best performed by a professional or experienced enthusiast. These springs are compatible with RockJock Johnny Joint suspension systems and other aftermarket lift kits, but it is recommended to verify compatibility with your specific setup before installation.

What's Included:

• Pair of RockJock Front Coil Springs (3.5-inch lift)

Ideal For:

This coil spring set is perfect for Jeep owners who want to increase their vehicle’s ride height for better off-road capability without sacrificing daily driving comfort. It suits those running EcoDiesel, 392 Hemi, or 4XE powertrains in JL Wrangler Unlimiteds, as well as JT Gladiator owners with the 3.6L gas engine. Whether upgrading a stock suspension or complementing a RockJock Johnny Joint system, these springs provide a reliable and durable lift solution for trail enthusiasts and weekend adventurers alike.

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.