RockJock Front Coil Springs

1997–2018 Jeep Wrangler TJ/LJ/JK 2.5L I4, 4.0L I6, 3.8L V6, 3.6L V6

Part #: CE-9133F

Overview

The RockJock Front Coil Springs are engineered to deliver reliable lift and enhanced off-road capability for Jeep Wrangler models spanning 1997 through 2018. Designed specifically for TJ Wrangler, LJ Unlimited, and JK Wrangler Unlimited (4-door) applications, these springs provide a 2-inch lift. For JK Wrangler 2-door models, they offer a 3-inch lift, improving ground clearance and suspension articulation. 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 lift kits.

Built to improve ride quality and height control, these springs strike a balance between comfort and rugged performance. Whether you’re upgrading your Jeep for trail adventures or daily driving, RockJock’s extensive research ensures these springs deliver consistent spring rates and durability for long-lasting use.

Key Features

RockJock Front Coil Springs combine thoughtful engineering with quality materials to enhance your Jeep’s suspension system. Key features include:

• Provides 2-inch lift on TJ Wrangler, LJ Unlimited, and JK Wrangler Unlimited (4-door) models
• Provides 3-inch lift on JK Wrangler 2-door models
• Direct replacement for factory coil springs for easy installation
• Designed to work with RockJock Johnny Joint suspension systems and other lift kits
• Gloss black powder coat finish for corrosion resistance and durability
• Optimized spring rate for improved ride comfort and off-road performance
• Extensively tested for consistent height control and suspension articulation
• 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 crafted from high-quality steel alloys, engineered to withstand the rigors of off-road driving while maintaining ride comfort on pavement. The springs undergo precise heat treatment and coil forming processes to ensure uniform spring rates and long-term durability. The gloss black powder coat finish not only enhances corrosion resistance but also provides a sleek appearance that complements your Jeep’s suspension components.

The design focuses on balancing lift height with spring stiffness, allowing for improved ground clearance without sacrificing on-road drivability. This makes the RockJock springs an excellent choice for Jeep owners seeking both performance and comfort.

Installation & Fitment

These coil springs are designed as direct replacements for the factory front springs on Jeep Wrangler TJ, LJ, and JK models from 1997 to 2018. Installation is straightforward and typically requires standard suspension tools. They are compatible with RockJock Johnny Joint suspension systems and can also be integrated with other lift kits. No major modifications are necessary, making them a practical upgrade for enthusiasts looking to enhance their Jeep’s stance and off-road capability.

What's Included

• Pair of RockJock Front Coil Springs (left and right)
• Installation instructions (if applicable)

Ideal For

These front coil springs are ideal for Jeep Wrangler owners who want to increase their vehicle’s ride height for better off-road clearance and improved suspension performance. They suit daily drivers who desire a more comfortable ride with enhanced handling, as well as off-road enthusiasts seeking reliable lift components compatible with RockJock or other suspension systems. Perfect for TJ, LJ, and JK Wrangler models equipped with 2.5L I4, 4.0L I6, 3.8L V6, or 3.6L V6 engines.

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.