The JKS JSPEC190FRS J-Krawl 3" Suspension Lift System is the top-tier complete lift kit for the 2018–2023 Jeep Wrangler JL 2-Door, engineered for maximum articulation, strength, and adjustability from hardcore rock crawling to high-speed desert running. This specific configuration pairs rubber-bushing control arms with the elite FOX 3.0 Factory Race Series (FRS) Internal Bypass (IBP) shocks — remote reservoir with DSC up front, piggyback with DSC in the rear — and heavy-duty (HD) rate dual-rate JSPEC coil springs tuned specifically for 2-door applications.
At the core of the J-Krawl system are all eight front and rear upper and lower control arms built from 2-inch x .250-wall DOM tubing. This rubber-bushing variant uses factory-style, maintenance-free rubber bushings pre-installed at both ends, engineered to reduce NVH (Noise, Vibration, and Harshness) for a quiet and controlled ride whether on the highway or on the trail.
The FOX 3.0 FRS Internal Bypass shocks are purpose-built for extreme off-road performance. Position-sensitive internal bypass technology delivers a plush, predictable ride during normal off-road use while ramping up damping force to counteract harsh bottom-outs or top-outs. The front shocks feature a remote hose reservoir (R/R) and the rear units use a piggyback reservoir (P/B), both equipped with Dual Speed Compression (DSC) adjustment for independent high-speed and low-speed compression tuning. Internally, hard-chromed 7/8" steel shafts, race-developed high-flow pistons, and finned reservoir bodies combine for fade-free performance in the most demanding conditions.
The HD-rate dual-rate JSPEC coil springs provide a progressive spring rate that increases as the spring compresses, delivering a plush highway ride with added support under load or aggressive off-road use.
System Components Include:
- FOX 3.0 FRS IBP Remote Reservoir DSC Front Shocks — specifically valved for this JKS lift system
- FOX 3.0 FRS IBP Piggyback DSC Rear Shocks — specifically valved for this JKS lift system
- Front & Rear HD Rate Dual-Rate JSPEC Coil Springs — tuned for 2-door JL applications
- Front & Rear Upper Control Arms — rubber-bushing, 2" x .250-wall DOM tube, adjustable
- Front & Rear Lower Control Arms — rubber-bushing, 2" x .250-wall DOM tube
- Adjustable Front Track Bar — corrects axle positioning under lift
- Rear Track Bar Bracket — maintains proper axle centering
- Front Sway Bar Quicker Disconnects — increases off-road suspension articulation
- Rear Sway Bar End Links
- Front & Rear Bump Stop Extensions — properly limits suspension up-travel
- Brake Line Brackets & Hardware
Key Features:
- FOX 3.0 Factory Race Series IBP Shocks with DSC high/low-speed compression adjustment front and rear
- Position-sensitive internal bypass technology for a plush ride with ramp-up damping under extreme inputs
- Rubber-bushing control arms for factory-style NVH reduction and maintenance-free operation
- HD Rate progressive dual-rate coil springs for increased load support and trail performance
- Full geometry correction — adjustable front caster, rear pinion angle, and overall wheelbase
- Builds directly off factory suspension mounting points — no cutting or welding required
- Allows fitment of 37x12.50 tires on Rubicon models or 35x12.50 tires on non-Rubicon models
Note: An aftermarket front driveshaft is strongly recommended due to the increased suspension travel this system provides.