Description
Upgrade your Jeep Wrangler JL or JLU Unlimited (3.6L V6 or 2.0T gas engine models) with the RockJock Sport Edition Johnny Joint Suspension System, a high-quality suspension lift kit engineered to deliver approximately 3.5 inches of lift and clearance for up to 37-inch tires, with larger tire fitment requiring aftermarket fenders and minor trimming. This Jeep JL suspension upgrade is designed to improve ground clearance, off-road capability, and overall vehicle performance while maintaining balanced on-road drivability.
Built with premium components focused on strength, fit, finish, function, and proven engineering, the Sport Edition Johnny Joint Suspension System delivers dependable performance for Jeep owners who want a capable lift kit without stepping into a full competition-level suspension system. It is ideal for weekend trail use, overlanding, and moderate off-road driving where reliability and comfort are equally important.
This Jeep JL lift kit enhances suspension articulation and stability, providing improved control and confidence both on and off the road. It allows drivers to run larger tires, improve stance, and increase ground clearance while maintaining predictable handling characteristics for everyday driving.
For enthusiasts planning more advanced off-road builds, RockJock offers a wide range of compatible upgrade components that can be added over time. This allows the Sport Edition system to serve as a scalable foundation that can evolve into a more capable rock crawling or high-performance off-road suspension setup as driving demands increase.
Kit Fits:
- JL Wrangler Unlimited (4-door) – All 3.6L V6/2.0T Models (*If you have an Extreme Recon model, please call!)
- JL Wrangler (2-door) – All 3.6L V6/2.0T Models (*See lift details below)
Kit Includes:
- 3.5 in. Lift Dual-Rate Front And Rear Springs
- Front and Rear Coil Spring Shims (one of each)
- Urethane Front Coil Spring Isolators (included with front springs)
- Johnny Joint Adjustable Front Upper Control Arms
- Johnny Joint Adjustable Rear Upper Control Arms
- Johnny Joint Adjustable Front Trac Bar (forged, organically shaped)
- Rear Trac Bar Geometry Correction Bracket
- Front and Rear Bump Stop Kits
- Front and Rear Adjustable Sway Bar Links w/ Sealed Ends
- Front Brake Line Relocation Brackets
- All Required Hardware
Kit Features:
- RockJock Spec. Dual-Rate Springs – Feature a soft initial rate that absorbs small bumps and trail chop, to deliver a smooth, comfortable ride, while a firmer secondary rate helps soak up larger impacts and reduce bottoming. A key differentiator of RockJock spec. dual-rate springs is the positioning of the crossover point between the initial and secondary spring rates so that a portion of the softer initial rate is available and active at ride height before crossing over to the firmer secondary rate deeper into the travel.
- Bump Stop Spacers – Proper bump stop extensions are a must and our heavy duty kits stand up to hard use while keeping the tires off of the shiny new JL fenders!
- Johnny Joint Control Arms – Heavy duty adjustable upper control arms feature RockJock Johnny Joints, the original and most durable high-articulation urethane suspension joint on the market. Johnny Joints feature a smooth steel ball that pivots inside a proprietary urethane shell to provide over 30 degrees (per joint) of quiet, shock dampening articulation – without the excessive deflection found in soft rubber-based flex joints. Johnny Joints are so trusted, that they are used by multiple commercial suspension companies, for both street and off-road suspension systems.
- Johnny Joint Trac Bar – Forged chromoly, organically shaped front trac bar combines a precise fit with incredible strength and rigidity that is only available via forging. The adjustability feature allows you to perfectly center front axle under the vehicle. High-articulation Johnny Joint ends provide maximum durability and suspension flex.
Lift Details – The RockJock Suspension System provides 3.5 in. of suspension lift.
- Finished height specs. are based off of a 4-door vehicle equipped with a hard top, steel bumpers, winch installed and a full size spare.
- Installation of this kit onto any build of a 2-door vehicle is likely to sit higher than 3.5 inches of lift!
- Actual lift height may vary due to factory build specs. and added equipment and accessories.
Tire Fitment:
- 37 in. tires – no inner fender modification necessary
- 38 in. or larger tires – aftermarket high-clearance fenders suggested/required
See This Kit:
