Skyjacker Dual Rate Long Travel Coil Spring Set

2021–2024 Jeep Wrangler 6.4L 392

Part #: JLUR353FDR

Overview

The Skyjacker 3.5-inch Front Dual Rate Long Travel Coil Spring Set is engineered specifically for the 2021–2024 Jeep Wrangler equipped with the powerful 6.4L 392 engine. Designed to enhance both off-road capability and on-road comfort, these coil springs deliver a balanced ride quality that meets the demands of serious Jeep enthusiasts. Whether tackling rugged trails or cruising city streets, this coil spring set provides superior suspension articulation and stability.

Skyjacker’s innovative dual rate design ensures a progressive spring response, allowing your Wrangler to flex and absorb impacts during full suspension droop while maintaining firm support under compression. This results in improved tire contact with the terrain and a smooth, controlled ride in all conditions.

Key Features

Skyjacker’s dual rate coil springs incorporate advanced engineering and materials to optimize performance and durability. Key features include:

• 3.5-inch front lift height for enhanced ground clearance and suspension travel
• Progressive variable rate design with two distinct stages: Flex Rate and Ride Rate
• Flex Rate stage allows comfortable articulation and full droop without coil unseating
• Ride Rate stage engages under compression for firm support and handling stability
• Constructed from high-strength 5160H chromium alloy steel for superior resilience
• Shot peening process increases tensile strength and fatigue resistance
• Preset solid height eliminates sagging and maintains consistent spring performance
• Durable baked-on powder coat finish protects against corrosion and wear
• Cycle tested to ensure long-lasting quality and reliability

Construction & Design

Each coil spring is crafted from premium 5160H chromium alloy steel, known for its exceptional toughness and flexibility. The manufacturing process includes shot peening, where the spring surface is bombarded with high-velocity steel pellets to compress and strengthen the material. This treatment enhances the spring’s tensile strength and resistance to fatigue, ensuring durability under demanding off-road conditions.

Additionally, the springs undergo a presetting process that compresses them fully to solid height, removing any residual stress and preventing sagging over time. The final powder coat finish provides a robust protective barrier against rust and environmental damage, extending the lifespan of the springs and maintaining their appearance.

Installation & Fitment

Designed as a direct fit for the front suspension of 2021–2024 Jeep Wrangler models with the 6.4L 392 engine, these coil springs install easily with standard suspension tools. No major modifications are required, making them an ideal upgrade for enthusiasts seeking improved ride quality and off-road performance. Professional installation is recommended to ensure proper fitment and safety.

What's Included

• One pair of 3.5-inch front dual rate long travel coil springs
• Installation instructions

Ideal For

This coil spring set is perfect for Jeep Wrangler owners who demand a suspension that excels both on and off the road. It suits drivers looking to enhance suspension articulation, maintain tire contact over rough terrain, and enjoy a smoother street ride without sacrificing handling or durability. Ideal for off-road enthusiasts, weekend adventurers, and anyone upgrading their Wrangler’s suspension for improved performance and comfort.

Skyjacker is a long-running off-road suspension brand offering lift kits, shocks, steering stabilizers, and related components for trucks, SUVs, and Jeeps. Built to increase clearance for larger tires and improve trail capability, Skyjacker systems are popular for enthusiasts who want a tougher stance and more off-road confidence with proven application coverage.