As the name suggests, the JKS Manufacturing J-Max 3.5in Suspension System was designed to provide maximum suspension performance to your Jeep Wrangler Unlimited JL. This coilover conversion kit features FOX 2.5 Remote Reservoir DSC Coilovers and bolt-on brackets for premium handling and off-road ability. The included J-Flex control arms are made from 2in x .250-wall DOM tubing, and reduce Noise Vibration and Harshness (NVH) by using factory style rubber bushings. By including all eight adjustable control arms, the J-Max system provides optimal ride quality. To ensure that all suspension and driveline geometry is optimized, JKS also includes front and rear adjustable track bars. Many states have laws that limit the maximum height of a lifted vehicle. Never exceed the legal height limit.
Level 4 Experts Only
Drilling Required
5in or Less Backspacing Required
Front Fox 2.5 Remote Reservoir DSC Coilover Pair
Rear Fox 2.5 Remote Reservoir DSC Coilover Pair
Front Coilover Conversion Brackets
Rear Coilover Conversion Brackets
Font Adjustable Lower Control Arm Pair
Rear Adjustable Lower Control Arm Pair
Front Adjustable Upper Control Arms
Rear Adjustable Upper Control Arms
Front Adjustable Track Bar
Rear Adjustable Track Bar
Front Sway Bar Disconnects
Rear Sway Bar End Links
Front Bump Stop Spacers
Rear Bump Stop Spacers
Front Brake Line Drop Brackets
Installation Hardware
Limited Lifetime Warranty
Features: Coil Over, Dual Rate Coil Springs, Front Sway Bar Disconnects, Short Arm
Shocks Included: With Shocks
Max Tire Size: 37
Lift Height Range: 3 - 4.5 inch
Included Parts: Bump Stops, Coil Springs, Extended Brake Lines, Front Lower Control Arms, Front Track Bar, Front Upper Control Arms, Hardware, Rear Lower Control Arms, Rear Track Bar Bracket, Rear Upper Control Arms, Sway Bar Endlinks
Shipping Weight: 278
Shipping Dimensions: 38in x 16in x 64in (L x W x H)
2024 Jeep Wrangler Unlimited 4-Door (JL)
2023 Jeep Wrangler Unlimited 4-Door (JL)
2022 Jeep Wrangler Unlimited 4-Door (JL)
2021 Jeep Wrangler Unlimited 4-Door (JL)
2020 Jeep Wrangler Unlimited 4-Door (JL)
2019 Jeep Wrangler Unlimited 4-Door (JL)
2018 Jeep Wrangler Unlimited 4-Door (JL)
Learn More
J-Max System: As the name suggests, the J-Max system is the top of the line lift kit from JKS. By upgrading to bolt-on coilovers, there are no obstacles too tough for your Jeep.
Vehicle Specific Design: This lift kit was engineered for the Wrangler Unlimited JK. The coil springs were specifically tuned for 4-door applications.
Run Larger Wheels and Tires: The JKS Manufacturing J-Max 3.5in Suspension System will allow you to fit 37x12.50 tires on Rubicon models, or 35x12.50 tires on non-Rubicon models.
FOX Racing Shox Coilovers: FOX 2.5 Remote Reservoir DSC Coilovers provide optimum ride and handling. With increased suspension flex, they will improve your Jeep's off-road ability.Installation Notes
Installation Difficulty:
Level 4 Experts Only
Installation Time: 14-15 hours
Parts Included
Warranty
Specs
Fitment
Jeep Wrangler Unlimited 4-Door (JL)
Description
As the name suggests, the JKS Manufacturing J-Max 3.5in Suspension System was designed to provide maximum suspension performance to your Jeep Wrangler Unlimited JL. This coilover conversion kit features FOX 2.5 Remote Reservoir DSC Coilovers and bolt-on brackets for premium handling and off-road ability. The included J-Flex control arms are made from 2in x .250-wall DOM tubing, and reduce Noise Vibration and Harshness (NVH) by using factory style rubber bushings. By including all eight adjustable control arms, the J-Max system provides optimal ride quality. To ensure that all suspension and driveline geometry is optimized, JKS also includes front and rear adjustable track bars. Many states have laws that limit the maximum height of a lifted vehicle. Never exceed the legal height limit.
Level 4 Experts Only
Drilling Required
5in or Less Backspacing Required
Front Fox 2.5 Remote Reservoir DSC Coilover Pair
Rear Fox 2.5 Remote Reservoir DSC Coilover Pair
Front Coilover Conversion Brackets
Rear Coilover Conversion Brackets
Font Adjustable Lower Control Arm Pair
Rear Adjustable Lower Control Arm Pair
Front Adjustable Upper Control Arms
Rear Adjustable Upper Control Arms
Front Adjustable Track Bar
Rear Adjustable Track Bar
Front Sway Bar Disconnects
Rear Sway Bar End Links
Front Bump Stop Spacers
Rear Bump Stop Spacers
Front Brake Line Drop Brackets
Installation Hardware
Limited Lifetime Warranty
Features: Coil Over, Dual Rate Coil Springs, Front Sway Bar Disconnects, Short Arm
Shocks Included: With Shocks
Max Tire Size: 37
Lift Height Range: 3 - 4.5 inch
Included Parts: Bump Stops, Coil Springs, Extended Brake Lines, Front Lower Control Arms, Front Track Bar, Front Upper Control Arms, Hardware, Rear Lower Control Arms, Rear Track Bar Bracket, Rear Upper Control Arms, Sway Bar Endlinks
Shipping Weight: 278
Shipping Dimensions: 38in x 16in x 64in (L x W x H)
2024 Jeep Wrangler Unlimited 4-Door (JL)
2023 Jeep Wrangler Unlimited 4-Door (JL)
2022 Jeep Wrangler Unlimited 4-Door (JL)
2021 Jeep Wrangler Unlimited 4-Door (JL)
2020 Jeep Wrangler Unlimited 4-Door (JL)
2019 Jeep Wrangler Unlimited 4-Door (JL)
2018 Jeep Wrangler Unlimited 4-Door (JL)
Learn More
J-Max System: As the name suggests, the J-Max system is the top of the line lift kit from JKS. By upgrading to bolt-on coilovers, there are no obstacles too tough for your Jeep.
Vehicle Specific Design: This lift kit was engineered for the Wrangler Unlimited JK. The coil springs were specifically tuned for 4-door applications.
Run Larger Wheels and Tires: The JKS Manufacturing J-Max 3.5in Suspension System will allow you to fit 37x12.50 tires on Rubicon models, or 35x12.50 tires on non-Rubicon models.
FOX Racing Shox Coilovers: FOX 2.5 Remote Reservoir DSC Coilovers provide optimum ride and handling. With increased suspension flex, they will improve your Jeep's off-road ability.Installation Notes
Installation Difficulty:
Level 4 Experts Only
Installation Time: 14-15 hours
Parts Included
Warranty
Specs
Fitment
Jeep Wrangler Unlimited 4-Door (JL)
Reviews
