RockJock Rear Coil Springs

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

Part #: CE-9132RP

Overview

The RockJock 4-inch Lift Rear Coil Springs are engineered specifically for Jeep Wrangler JK models from 2007 through 2018, covering both 3.6L and 3.8L V6 engine variants. Designed as a direct replacement for factory springs, this pair of coil springs provides a reliable 4-inch lift to enhance your Jeep’s off-road capability and stance. Whether you drive a 2-door or 4-door JK Wrangler, these springs deliver improved ride quality and superior height control, making them an excellent upgrade for enthusiasts seeking both comfort and performance.

These springs are ideal for Jeep owners looking to complement RockJock Johnny Joint suspension systems or other compatible lift kits. Extensive development and testing have resulted in a spring rate that balances a smooth on-road ride with the durability and articulation needed for challenging off-road terrain.

Key Features

RockJock’s rear coil springs are crafted to meet the demands of serious Jeep enthusiasts. Key features include:

• 4-inch lift height for enhanced ground clearance and aggressive stance
• Direct factory spring replacement for easy installation
• Compatible with RockJock Johnny Joint suspension systems and other lift kits
• Gloss black powder coat finish for corrosion resistance and long-lasting appearance
• Optimized spring rate for a balanced ride—comfortable on-road and capable off-road
• Designed for both 2-door and 4-door Jeep Wrangler JK models
• Manufactured with high-quality materials to ensure durability and performance
• Extensive research and testing to achieve ideal suspension dynamics

Construction & Design

RockJock rear coil springs are constructed from premium-grade steel, engineered to withstand the rigors of off-road driving while maintaining structural integrity and consistent performance. The springs undergo a precision manufacturing process to ensure uniform coil spacing and tension, which contributes to predictable handling and ride comfort.

The gloss black powder coat finish not only enhances the springs’ aesthetic appeal but also provides robust protection against rust and environmental wear, extending the lifespan of the suspension components even in harsh conditions.

Installation & Fitment

These coil springs are designed for a straightforward installation process, directly replacing the factory rear springs on Jeep Wrangler JK models from 2007 to 2018 with 3.6L or 3.8L V6 engines. No major modifications are required when used with compatible lift kits or RockJock Johnny Joint suspension systems. For best results, professional installation is recommended to ensure proper alignment and suspension geometry.

If you need assistance selecting the correct springs or have questions about compatibility, RockJock’s knowledgeable sales staff is available to provide expert guidance.

What's Included

• Pair of RockJock 4-inch Lift Rear Coil Springs

Ideal For

This product is perfect for Jeep Wrangler JK owners seeking to improve their vehicle’s off-road performance and appearance with a reliable 4-inch rear lift. It suits enthusiasts who want enhanced ground clearance, better suspension articulation, and a more aggressive stance without sacrificing ride comfort. Whether upgrading a stock suspension or complementing a custom lift kit, these springs offer dependable quality and performance for daily driving and trail adventures 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.