Skyjacker YJ40FS 3.5-4 Inch Front Leaf Spring Kit for Jeep Wrangler YJ

The Skyjacker YJ40FS Softride front leaf spring delivers 3.5 to 4 inches of lift for Jeep Wrangler YJ models, combining superior ride quality with exceptional durability. Engineered with 100% American steel, these springs provide the perfect balance of lift height and on-road comfort for daily drivers and weekend trail enthusiasts.

Advanced Manufacturing Process:

• Shot-peened construction using high-velocity hard steel pellets to compress the surface and increase tensile strength
• Full-length leaf tapering distributes loads evenly across the entire spring surface
• Bolt-style spring clips eliminate friction and binding common with cinch-style designs
• Premium American steel construction for long-lasting performance

Performance Benefits:

• Maximum wheel travel without sacrificing spring life
• Reduced inter-leaf friction for smoother articulation
• Even load distribution prevents leaf-to-leaf digging and premature wear
• Enhanced flex at leaf ends for improved off-road performance

The Softride series is designed for drivers who refuse to compromise between lift capability and ride comfort. The shot-peening process and tapered leaf design work together to provide a compliant ride on pavement while maintaining the strength needed for off-road adventures.