RockJock Front Coil Springs

1997–2018 Jeep Wrangler 2.5L I4 / 4.0L I6 / 3.6L V6

Part #: CE-9132FP

Overview

The RockJock Front Coil Springs are engineered to provide a reliable and consistent lift for Jeep Wrangler models spanning from 1997 through 2018. Designed specifically for TJ Wrangler, LJ Unlimited, and JK Wrangler Unlimited (4-door) applications, these springs deliver a 4-inch front lift. For JK Wrangler 2-door models, they offer a 5-inch lift, enhancing ground clearance and off-road capability. These coil springs are a direct replacement for factory springs and are optimized to work seamlessly with RockJock Johnny Joint suspension systems as well as other manufacturers’ lift kits.

Built for Jeep enthusiasts who demand improved ride quality, height control, and durability, these springs balance comfort and performance. Whether you’re tackling rugged trails or daily driving, RockJock’s extensive research ensures these springs provide a smooth ride without compromising off-road readiness.

Key Features

RockJock’s front coil springs combine advanced engineering with quality materials to deliver dependable performance. Key features include:

• 4-inch lift for TJ Wrangler, LJ Unlimited, and JK Wrangler Unlimited (4-door) models
• 5-inch lift for JK Wrangler 2-door models
• Direct factory spring replacement for easy installation
• Designed to complement RockJock Johnny Joint suspension systems and other lift kits
• Gloss black powder coat finish for corrosion resistance and durability
• Optimized spring rate for a comfortable ride and excellent off-road control
• Extensive research and testing to ensure consistent performance
• Compatible with Jeep Wrangler engines including 2.5L I4, 4.0L I6, 3.8L V6, and 3.6L V6

Construction & Design

RockJock coil springs are manufactured using high-quality steel alloys that provide strength and resilience under demanding conditions. The springs are precision wound to achieve the ideal spring rate, balancing stiffness and flexibility for both on-road comfort and off-road articulation. The gloss black powder coat finish not only enhances appearance but also protects against rust and environmental wear, extending the lifespan of the springs.

Each spring is engineered to maintain consistent height and performance over time, resisting sagging and fatigue. This attention to detail ensures your Jeep maintains its lifted stance and handling characteristics mile after mile.

Installation & Fitment

These coil springs are designed as direct replacements for the factory front springs on Jeep Wrangler models from 1997 to 2018, covering multiple engine options including 2.5L I4, 4.0L I6, 3.8L V6, and 3.6L V6. Installation is straightforward for experienced mechanics or off-road enthusiasts familiar with suspension work. They are compatible with RockJock Johnny Joint suspension systems and other lift kits, making them a versatile choice for various suspension setups.

No major modifications are typically required, but professional installation is recommended to ensure proper alignment and safety. For assistance in selecting the correct springs for your specific Jeep model and suspension configuration, RockJock’s knowledgeable sales staff is available to provide expert guidance.

What's Included

• Pair of RockJock front coil springs
• Installation instructions (where applicable)

Ideal For

These front coil springs are ideal for Jeep Wrangler owners seeking a reliable lift solution that enhances off-road capability without sacrificing ride comfort. Whether you own a TJ, LJ Unlimited, or JK Wrangler (2-door or 4-door), these springs provide the height and suspension performance needed for trail riding, rock crawling, or everyday driving with added ground clearance.

They are especially suited for those using RockJock Johnny Joint suspension systems or looking to upgrade their existing lift kit with high-quality, durable coil springs engineered for longevity and consistent performance.

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.