Superlift Dual Rate Coil Springs

2018–2019 Jeep Wrangler JL Rear Suspension

Part #: 597

Overview

The Superlift 4-inch Lift Dual Rate Coil Springs (Pair) are engineered specifically for the rear suspension of the 2018–2019 Jeep Wrangler JL. Designed by off-road enthusiasts for off-road enthusiasts, these coil springs provide a balanced lift that enhances both on-road comfort and off-road capability. Whether you’re tackling rugged trails or cruising city streets, these springs deliver improved ground clearance and suspension articulation without compromising ride quality.

Superlift’s commitment to quality and customer satisfaction ensures that these coil springs perform better than advertised. They are ideal for Jeep owners seeking a reliable lift solution that maintains factory-like handling characteristics while providing the extra height needed for larger tires and improved off-road performance.

Key Features

Superlift’s dual rate coil springs incorporate advanced suspension technology to optimize ride and handling. Key features include:

• 4-inch lift height designed to increase ground clearance and accommodate larger tires
• Dual rate design for a progressive spring rate that balances comfort and performance
• Engineered specifically for the rear suspension of Jeep Wrangler JL models from 2018 to 2019
• Durable construction to withstand harsh off-road conditions and heavy loads
• Improved suspension articulation for enhanced off-road traction and control
• Maintains factory ride quality for daily driving and highway use
• Corrosion-resistant finish for long-lasting durability
• Designed and tested by true off-road enthusiasts to meet real-world demands

Construction & Design

Superlift coil springs are crafted from high-quality steel alloys that provide exceptional strength and resilience. The dual rate design features variable coil spacing and wire diameter to deliver a progressive spring rate, which means the springs are softer during normal driving conditions for comfort, yet firm up under heavy loads or extreme articulation to prevent bottoming out.

Each spring undergoes precise engineering and rigorous testing to ensure consistent performance and durability. The corrosion-resistant coating protects against rust and environmental damage, extending the lifespan of the springs even in challenging off-road environments.

Installation & Fitment

These coil springs are a direct fit replacement for the rear suspension of 2018–2019 Jeep Wrangler JL models. Installation typically requires standard suspension tools and moderate mechanical skills. No major modifications are necessary, making it a straightforward upgrade for experienced DIYers or professional installers.

For optimal results, it is recommended to have the vehicle professionally aligned after installation to maintain proper handling and tire wear. Superlift’s technical support team is available to assist with any questions during the installation process.

What's Included

• Pair of Superlift 4-inch Lift Dual Rate Coil Springs (rear)
• Installation instructions

Ideal For

This product is perfect for Jeep Wrangler JL owners who want to improve their vehicle’s off-road capability and appearance with a moderate lift. It suits enthusiasts who require additional clearance for larger tires and enhanced suspension travel without sacrificing daily driving comfort. Whether you’re an avid trail rider or a weekend adventurer, these coil springs provide a reliable and durable suspension upgrade tailored to your Jeep.

Superlift Suspension Systems builds lift kits, leveling systems, shocks, and steering components engineered to increase ground clearance while keeping suspension geometry and control dialed in for real off-road use. It’s a staple brand for truck and SUV enthusiasts who want stronger stance and trail capability without giving up stability and ride confidence on the street.