The ReadyLIFT 4-inch Terrain Flex 8-Arm Lift Kit for 2007-2018 Jeep JK Wrangler is a high-performance suspension system designed to maximize both on-road comfort and off-road capability. This kit stands out by including eight heavy-duty DOM tube steel control arms equipped with proprietary Terrain Control Technology (TCT) flex joints. These joints provide superior articulation and a quiet, maintenance-free ride, offering a premium alternative to expensive long-arm systems. Complete with 4-inch lift coil springs and a heavy-duty front track bar, this kit ensures your Wrangler maintains proper geometry and handling across the most demanding terrains.

Features

• Provides a substantial 4-inch lift for improved ground clearance and an aggressive off-road stance.
• Includes eight (8) heavy-duty DOM tube steel short control arms for complete suspension adjustability.
• Features proprietary Terrain Control Technology (TCT) flex joints for maximum articulation and quiet operation.
• Comes with four (4) 4-inch lift coil springs specifically tuned for the Jeep JK chassis.
• Heavy-duty front track bar ensures the front axle remains centered and stable.
• Includes a plate steel rear track bar bracket to correct the vehicle's roll center and track bar placement.
• Equipped with extended length sway bar end links to maintain proper handling and stability.
• Includes shock and bump stop extensions to preserve suspension travel and protect components.
• Accommodates up to 35-inch tires with stock fenders or 37-inch tires with flat fenders.
• 100% bolt-on installation made in the U.S.A.

Notes

• A professional wheel alignment is required after installation to ensure optimal handling and safety.
• Headlamp aim must be checked and adjusted for safety following the change in ride height.
• Advanced Driver Assistance Systems (ADAS) should be recalibrated to maintain proper monitoring and function.
• Installation by a certified mechanic is recommended due to the technical nature of the 8-arm suspension.
• 2012-UP models may require front driveshaft and exhaust modifications for proper off-road clearance.
• Requires longer shocks (sold separately in kit 69-6409 or as standalone SST3000 shocks).

Compatibility Notes

• Fits 2007–2018 Jeep JK Wrangler 2-door and 4-door 4WD models.
• Compatible with both factory and aftermarket flat fenders for varying tire sizes.

Specs

• Lift Height: 4.0 inches.
• Control Arms: 8-Arm Short Arm System.
• Joint Type: TCT (Terrain Control Technology) Flex Joints.
• Max Tire Size: 37 inches (with flat fenders).
• Kit Contents: (8) TCT control arms, (4) lift springs, (1) front track bar, (1) rear track bar bracket, (4) sway bar links, shock extensions, bump stop extensions, and hardware.