4" Terrain Flex 8-Arm Lift Kit - Jeep JK Wrangler 4WD 2007-2018
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- Professional Suspension at a Reasonable Price! ReadyLIFT Suspension is happy to announce that we have developed a 8-Arm Lift Kit category for the Jeep JK Wrangler that is made right here in the U.S.A. These exciting 8-Arm Terrain Flex Lift Kits are designed to maximize the Jeep owners on and off road experience without having to break the bank! The 69-6408 4" 8-Arm Terrain Flex Lift kit features our new proprietary Heavy Duty DOM tube steel Control Arms with TCT - Terrain Control Technology flex joints integrated into our popular coil spring lift kits. This lift kit requires longer shocks - available in kit 69-6409. 69-6408 DOES NOT include longer shocks. The ReadyLIFT Jeep JK 4" Terrain Flex 8-Arm Lift Kits are a great option for the Jeep owner who wants more than just a lift kit, but doesn't require the need for an over-the-top expensive long-arm suspension system. Our new Control Arms feature our TCT - Terrain Control Technology flex joints contained in heavy duty forged housings that bolt right up in replacement of the inferior OEM Control Arms. This new 8-arm system allows the Jeep owner to have a lifted JK that rides great and performs outstanding even in the roughest terrain. If you want the best lift component offering in a kit that doesn't break the bank, our new 8-arm SST Lift kits are exactly what you need. Available in both 4" and 2.5" lift heights, these kits also include important bolt-on accessories such as a specially designed plate steel rear track bar bracket to correct roll center and track bar placement, a new heavy-duty front track bar and extended length sway bar end links keep your JK handling properly. ReadyLIFT 4" Terrain Flex 8-Arm Lift Kits are designed for use on ALL Jeep JK Wrangler 2-door & 4-door vehicles and like all ReadyLIFT products, are covered by our ReadyGuard Powertrain Warranty. NOTE: 2012-UP JKs may require front driveshaft and exhaust modifications for off road use. NOTE: 4.0" Lift - max 37" Tires with flat fenders. 35" with stock fenders
- 35x12.50 max. on 4.5" bs wheel. 37x12.50 with flat fenders
Tire Size Note: ReadyLIFT wheel and tire fitment recommendations are typically based on Wheel Pros wheels and Nitto tires. Due to product differences among tire manufacturers, tire specifications and dimensions including, but limited to, overall diameter, rolling diameter, tread width, aspect ratio, lug pattern, sidewall construction and inflation pressure, will vary meaningfully by tire and wheel manufacturer. Every tire and wheel combination should be test fit prior to installation. Consult your local installer to learn more about the right tire fitment for your application.
Ride Quality Note: When lifting a vehicle and installing aftermarket wheels and tires, a tire manufacturer's construction and material quality can alter vehicle ride quality. When increasing a vehicle wheel and tire size, most larger aftermarket truck and SUV tires are 10-ply (or more) E tires compared to typical OEM 6-ply C tires. This more rigid sidewall construction increases the perception of suspension stiffness often described as ride harshness. The ride, handling, traction, noise, fuel economy, and wear differences between All-Season, All-Terrain, Mud-Terrain, or Trail-Terrain type tires can be significant. Please take into account tire and wheel choice will generally have a meaningful impact on the ride & handling experience.
(8) ReadyLIFT short arms with TCT Joints (4) 4" lift coil springs (1) Front track bar (1) Rear track bar bracket (4) Sway bar end links (4) Shock extensions (4) Bump stop extensions All necessary hardware
SAEJ2492 WARNING: By installing this product, you acknowledge that the suspension of this vehicle has been modified. As a result, this vehicle may handle differently than factory-equipped vehicles. As with any vehicle, extreme care must be used to prevent loss of control or rollover during sharp turns or abrupt maneuvers. Always wear seat belts, and drive safely, recognizing that reduced speeds and specialized driving techniques may be required. Failure to drive this vehicle safely may result in serious injury or death. Do not drive this vehicle unless you are familiar with its unique handling characteristics and are confident of your ability to maintain control under all driving conditions. Some modifications (and combinations of modifications) are not recommended and may not be permitted in your state. Consult your owner's manual, the instructions accompanying this product, and state laws before undertaking these modifications. You are responsible for the legality and safety of the vehicle you modify using these components.
INSTALLATION ALIGNMENT NOTE: Your vehicle may require alignment after product installation. You may incur additional costs to align the vehicle.
INSTALLATION HEADLAMP AIM NOTE: In addition to your vehicle alignment, for your safety and others, it is necessary to check and adjust your vehicle headlamps for proper aim and alignment after product installation. You may incur additional costs to adjust the headlamp system.
INSTALLATION ADVANCED DRIVER ASSISTANCE SYSTEMS (ADAS) NOTE: If your vehicle is equipped with active or passive safety/collision monitoring and/or assistance/avoidance systems including, but not limited to, camera- or radar/sonar-based systems, check and adjust your vehicle’s systems for proper aim and function after product installation. In some instances, your vehicle may require OEM dealer service tools and factory-trained technicians to re-calibrate ADAS. You may incur additional costs to adjust ADAS systems.
DO IT YOURSELF: Please read Instructions thoroughly and completely before beginning installation. Installation by a certified mechanic is recommended. ReadyLIFT Suspension Inc. is NOT responsible for any damage or failure resulting from improper installation. Download Pdf InstructionsEstimated Installation Time: 7 Hours +/- 1 hour (excluding alignment and wheel/tire assembly)Have a certified mechanic do it for you!
- California Residents: Prop 65 WARNING Cancer, Birth Defects and Reproductive Harm www.P65Warnings.ca.gov
Quick Overview2007-2018 JK Wrangler 4" Lift - 2dr/4dr Includes (8) short arms Includes front track bar Shocks not included 2012-UP vehicles may require driveshaft and exhaust modifications.DetailsProfessional Suspension at a Reasonable Price! ReadyLIFT Suspension is happy to announce that we have developed a 8-Arm Lift Kit category for the Jeep JK Wrangler that is made right here in the U.S.A. These exciting 8-Arm Terrain Flex Lift Kits are designed to maximize the Jeep owners on and off road experience without having to break the bank! The 69-6408 4" 8-Arm Terrain Flex Lift kit features our new proprietary Heavy Duty DOM tube steel Control Arms with TCT - Terrain Control Technology flex joints integrated into our popular coil spring lift kits. This lift kit requires longer shocks - available in kit 69-6409. 69-6408 DOES NOT include longer shocks. The ReadyLIFT Jeep JK 4" Terrain Flex 8-Arm Lift Kits are a great option for the Jeep owner who wants more than just a lift kit, but doesn't require the need for an over-the-top expensive long-arm suspension system. Our new Control Arms feature our TCT - Terrain Control Technology flex joints contained in heavy duty forged housings that bolt right up in replacement of the inferior OEM Control Arms. This new 8-arm system allows the Jeep owner to have a lifted JK that rides great and performs outstanding even in the roughest terrain. If you want the best lift component offering in a kit that doesn't break the bank, our new 8-arm SST Lift kits are exactly what you need. Available in both 4" and 2.5" lift heights, these kits also include important bolt-on accessories such as a specially designed plate steel rear track bar bracket to correct roll center and track bar placement, a new heavy-duty front track bar and extended length sway bar end links keep your JK handling properly. ReadyLIFT 4" Terrain Flex 8-Arm Lift Kits are designed for use on ALL Jeep JK Wrangler 2-door & 4-door vehicles and like all ReadyLIFT products, are covered by our ReadyGuard Powertrain Warranty. NOTE: 2012-UP JKs may require front driveshaft and exhaust modifications for off road use. NOTE: 4.0" Lift - max 37" Tires with flat fenders. 35" with stock fendersTire Fitment35x12.50 max. on 4.5" bs wheel. 37x12.50 with flat fendersTire Size Note: ReadyLIFT wheel and tire fitment recommendations are typically based on Wheel Pros wheels and Nitto tires. Due to product differences among tire manufacturers, tire specifications and dimensions including, but limited to, overall diameter, rolling diameter, tread width, aspect ratio, lug pattern, sidewall construction and inflation pressure, will vary meaningfully by tire and wheel manufacturer. Every tire and wheel combination should be test fit prior to installation. Consult your local installer to learn more about the right tire fitment for your application.
Ride Quality Note: When lifting a vehicle and installing aftermarket wheels and tires, a tire manufacturer's construction and material quality can alter vehicle ride quality. When increasing a vehicle wheel and tire size, most larger aftermarket truck and SUV tires are 10-ply (or more) E tires compared to typical OEM 6-ply C tires. This more rigid sidewall construction increases the perception of suspension stiffness often described as ride harshness. The ride, handling, traction, noise, fuel economy, and wear differences between All-Season, All-Terrain, Mud-Terrain, or Trail-Terrain type tires can be significant. Please take into account tire and wheel choice will generally have a meaningful impact on the ride & handling experience.
Kit Components(8) ReadyLIFT short arms with TCT Joints (4) 4" lift coil springs (1) Front track bar (1) Rear track bar bracket (4) Sway bar end links (4) Shock extensions (4) Bump stop extensions All necessary hardware
InstallationSAEJ2492 WARNING: By installing this product, you acknowledge that the suspension of this vehicle has been modified. As a result, this vehicle may handle differently than factory-equipped vehicles. As with any vehicle, extreme care must be used to prevent loss of control or rollover during sharp turns or abrupt maneuvers. Always wear seat belts, and drive safely, recognizing that reduced speeds and specialized driving techniques may be required. Failure to drive this vehicle safely may result in serious injury or death. Do not drive this vehicle unless you are familiar with its unique handling characteristics and are confident of your ability to maintain control under all driving conditions. Some modifications (and combinations of modifications) are not recommended and may not be permitted in your state. Consult your owner's manual, the instructions accompanying this product, and state laws before undertaking these modifications. You are responsible for the legality and safety of the vehicle you modify using these components.
INSTALLATION ALIGNMENT NOTE: Your vehicle may require alignment after product installation. You may incur additional costs to align the vehicle.
INSTALLATION HEADLAMP AIM NOTE: In addition to your vehicle alignment, for your safety and others, it is necessary to check and adjust your vehicle headlamps for proper aim and alignment after product installation. You may incur additional costs to adjust the headlamp system.
INSTALLATION ADVANCED DRIVER ASSISTANCE SYSTEMS (ADAS) NOTE: If your vehicle is equipped with active or passive safety/collision monitoring and/or assistance/avoidance systems including, but not limited to, camera- or radar/sonar-based systems, check and adjust your vehicle’s systems for proper aim and function after product installation. In some instances, your vehicle may require OEM dealer service tools and factory-trained technicians to re-calibrate ADAS. You may incur additional costs to adjust ADAS systems.
DO IT YOURSELF: Please read Instructions thoroughly and completely before beginning installation. Installation by a certified mechanic is recommended. ReadyLIFT Suspension Inc. is NOT responsible for any damage or failure resulting from improper installation. Download Pdf InstructionsEstimated Installation Time: 7 Hours +/- 1 hour (excluding alignment and wheel/tire assembly)Have a certified mechanic do it for you!
Additional InformationCalifornia Residents: Prop 65 WARNING Cancer, Birth Defects and Reproductive Harm www.P65Warnings.ca.govWarning: This product can expose you to chemicals include [name of chemical], which [is/are] known to the State of California to case [cancer]/[birth defects or other reproductive harm]. For more information go to www.P65Warnings.ca.gov.Related ProductsCheck items to add to the cart or