3.5" Ultimate Adventure Suspension System JK 2DR
The Rock Krawler 3.5" Ultimate Adventure Mid-Arm System is the definitive "all-in-one" solution for Jeep Wrangler JK owners looking to jump straight into a professional-grade suspension architecture. At 3.5 inches of lift, factory geometry is pushed to its limits; this system solves that by replacing all eight factory control arms with adjustable Adventure Series solid steel arms. This allows for total control over your wheelbase and axle centering, which is critical for maintaining high-speed stability and preventing the "flighty" steering and driveline vibrations that often plague taller JK builds.
This system is engineered for the enthusiast who wants a "set it and forget it" experience without sacrificing extreme trail performance. It features Rock Krawler’s signature Triple-Rate Coil Springs, which provide a plush, compliant ride over highway expansion joints while offering a progressive rate to handle heavy steel bumpers, winches, or overlanding gear. Combined with a 1.5" O.D. solid steel adjustable front track bar, the Ultimate Adventure system provides the lateral rigidity and precision tuning needed to eliminate "death wobble" and ensure your JK remains planted and predictable on both the pavement and the rocks.
Total Geometry Control (8-Arm Upgrade): By replacing every factory control arm with an adjustable solid steel version, you can perfectly dial in your front caster and rear pinion angles. This is essential at a 3.5" height to ensure stable steering and to protect your driveshafts and U-joints from premature wear.
Maintenance-Free Pro Flex Joints: These arms feature Rock Krawler’s proprietary joints that are 100% service-free and silent. They provide massive articulation for technical trails without the squeaking or the need for constant greasing required by traditional aftermarket joints.
Indestructible Lateral Support: The included 1.5" O.D. solid steel adjustable front track bar is nearly indestructible compared to the hollow factory unit. It keeps the front axle perfectly centered and provides a firm, responsive steering feel even when running 35" or 37" tires.
Triple-Rate Spring Technology: These coils provide three distinct spring rates, ensuring a soft "street" ride for daily driving, a stable "trail" rate for off-camber obstacles, and a firm "bottom-out" zone to protect your investment during high-speed impacts.
"Abuse It" Lifetime Warranty: Rock Krawler stands behind their engineering with a lifetime warranty on all hard parts (arms and track bars). If you manage to bend or break a component during off-road use, they will replace it, making this a worry-free, long-term investment.
| Manufacturers Part Number | JK35UA-2 |
|---|---|
| Product Name | 3.5" Ultimate Adventure Suspension System JK 2DR |
| Dropdown Value 1 | 2-door |
| Dropdown Value 2 | Without Shocks |
| Weight | 210.100000 |
| Hazmat | No |
| Brand | Rock Krawler |
| Shocks Included | Without Shocks |
| Item Returns | This item can be returned |
Validate your login