Skyjacker Suspension JL40RBLT 4 Inch Lift Kit Component Box for Jeep Wrangler JL Rubicon 4-Door

The Skyjacker JL40RBLT 4-inch Component Box Lift Kit is specifically engineered for the Jeep Wrangler JL 4-Door Rubicon without shocks. This comprehensive suspension system features Skyjacker's innovative progressive variable rate coil springs with a distinctive 2-stage dual rate long travel design.

Progressive Dual Rate Coil Spring Technology:

• 1st Flex Rate Stage: Delivers comfortable on-road ride quality while providing increased articulation for off-road terrain. The flex rate expands during full droop to keep coil springs properly seated and tires in contact with the ground
• 2nd Ride Rate Stage: Engages after compression past the flex rate, engineered to coordinate with the Wrangler's distinctive suspension characteristics
• Side-Specific Rear Coils: Engineered specifically for left and right side applications to optimize handling

Complete Component Kit Includes:

• Front Adjustable Track Bar: Features Skyjacker-installed pressed-in heavy-duty OEM-style rubber bushing with adjustable 3/4-inch heavy-duty rod end, jam nut, and alignment bushings
• Rear Track Bar Upper Mount Bracket: Heavy-duty construction properly centers the axle under the vehicle
• Front and Rear Bump Stop Spacers: Bolt directly onto axle bump pads to safely control suspension travel
• Extended Length Sway Bar End Links: Front and rear links with Skyjacker-installed pressed-in heavy-duty OEM-style rubber bushings allow full articulation during droop

This suspension system maintains proper geometry to ensure the Electronic Stability Control (ESC) system functions within factory parameters. Shocks sold separately.