Skyjacker TJ401BLTX 4 Inch Lift Kit with Dual Rate Long Travel Coil Springs for Jeep Wrangler TJ

The Skyjacker TJ401BLTX is a comprehensive 4-inch suspension lift component box engineered specifically for Jeep Wrangler TJ models. This complete system features innovative dual rate long travel coil springs that deliver superior performance both on and off-road.

Dual Rate Long Travel Coil Springs:

Skyjacker's progressive variable rate coil springs utilize a distinctive 2-stage design with two performance zones. The first Flex Rate stage provides a comfortable ride quality with exceptional ability to flex and expand during full articulation. The second Ride Rate stage engages only after compression past the Flex Rate, resulting in a smoother, more controlled ride under load. Kit includes front and rear pairs of these advanced coil springs.

Control Arms and Articulation:

• Extended front and rear lower control arm links properly correct caster angle for improved handling
• Upper frame mounts feature pressed-in heavy-duty OEM-style vulcanized rubber bushings
• Axle mounts equipped with Rock Jock 2.5-inch forged Johnny Joints
• Johnny Joints provide over 30 degrees of unrestricted flex movement in any direction
• High-density urethane bushings offer exceptional durability
• Forged housing construction withstands extreme torsional forces
• Proven quiet, shock-dampening articulation performance

Complete System Components:

• Front and rear bump stop spacers bolt between upper frame and OEM bump stops to safely control suspension travel limits
• Front double-disconnect and rear extended-length sway bar end links allow full articulation at maximum droop
• Sway bar end links include Skyjacker-installed pressed-in heavy-duty OEM-style rubber bushings
• Tubular transfer case lowering kit corrects driveline angles to prevent vibration while maintaining ground clearance
• Drop pitman arm reduces drag link operating angle, bringing it into proper alignment with the track bar
• Rear track bar lower axle mount bracket mounts directly to axle housing to correct track bar angle
• Re-centers rear axle for improved handling and lower roll center with reduced side-to-side sway

This complete component box includes all necessary bushings and high-grade mounting hardware for installation. Designed for enthusiasts seeking maximum articulation, improved ride quality, and serious off-road capability.