The Rock Krawler Suspension JL 2.5 inch 4XE Adventure - X Mid-Arm System is specifically designed for Sport and Sahara owners who want a complete system, bolt-in installation, and the best articulation of any MID-ARM kit on the market. Our system proves its durability and off-road performance every time you hits the streets or trail! The Term, Adventure - X comes from the inclusion of 8 adjustable control arms with our 100% Service Adventure Series joints installed. Our industry leading, Adventure - X mid-Arms feature adjustable upper and lower control arms and offer a total of 70 degrees of misalignment when paired with our Adventure series Joints at the frame connection and at the axle. The inherent bind in a factory JL control arm is greatly reduced.
With so much adjustability, it allows you to precision tune the JL's caster and pinion angle front and rear. Driving you home with the most comfortable ride possible in a Wrangler, are our TRIPLE RATE coils. All 4 coils work together to achieve excellent on-road comfort that we feel is better than the OEM linear rate springs. The coil itself is built with the proper "Free-length" for off-road articulation and stays firmly seated in the coil bucket (as long as a proper length shock is installed), and overall a very controlled reaction to bumps, rocks, sand, mud and whatever else you can manage to throw at them! All Rock Krawler JL systems include correction pads that reduce the spring bow inherent in the factory set up. The provided track bar geometry corrections, both front and rear, lets you perfectly center the axles so there is no compromise in on road handling.
System Benefits:
Lifetime Warranty on all hard parts
Complete bolt in system
Excellent highway ride and handling
The best off-road ability of all Mid Arm Systems
Improved rear roll center
Tuned Triple Rate Coils
Spring Correction Seats
Vehicle lean correction
Upgradable to RK Longarm System
Abuse Proof Lifetime Warranty
Best Technical support in the industry
Jeep remains level on all 4 corners
Shock Information:
Generic Front Shock Length – 18.31” Collapsed/ 30.31” Maximum Extended
Generic Rear Shock Length – 19” Collapsed/ 31” Maximum Extended
Bilstein Shocks:
Front: BIL33-292625
Rear: BIL33-292632
Fox Shocks:
Front: FOX985-24-177
Rear: FOX985-24-178
Note: Requires 3" bump stops both front and rear
Wheel Fitment:
Sport and Sahara Wheel Fitment Recommendations
37”/38” Tall Tires - Recommend 3.5” of Back Spacing
Rubicon Fitment Recommendations
37” Tall Tires – Recommend 4.5” of Back Spacing
40” Tall Tires – Recommend 3.5” of Back Spacing
Tire Fitment:
Sport and Sahara with Full OEM Fenders
37” Tall Tires (3” Bump Stop Height Recommended)
Sport and Sahara with Trimmed or High Lined OEM Fenders
38” Tall Tires (3” Bump Stop Height Recommended)
Rubicon with Full OEM Fenders
37”/38” Tall Tires (3” Bump Stop Height Recommended)
Rubicon with Trimmed or High Lined OEM Fenders
40” Tall Tires (3” Bump Stop Height Recommended)
General Notes:
All lift heights based on Rubicon models for standard style build (i.e. front bumper and winch, rear bumper and full size spare).
If building with a spare delete we recommend dropping 1” in coil lift height for the rear.
If building an overland or heavily up-fitted build in the back, we recommend upsizing 1” in coil lift height for the rear.
We recommend a new front driveshaft if you plan to off-road routinely.(Adam's Drivesahft,Tom Woods,J.E. Reel)
Fox 2.0 Performance Series IFP Shock Front - 2-3in Lift Features:
2.0” Impact extruded and CNC machined 6061-T6 clear anodized aluminum one-piece body resists rust over time
Clear-anodized for a durable finish
Internal IFP mono-tube reservoir design
Black-anodized, CNC-machined 6061-T6 billet aluminum components
5/8" hard chrome plated heat-treated alloy steel shaft
Race-developed high-flow piston design
Application specific valving to maximize performance
Redundant sealing pack system main seal, wiper seal, scraper seal
Quiet nitrile rubber allows for increased suspension articulation
The Fox 2.0 Performance Series IFP Shock Front Greatly Improves Suspension Performance while Dramatically Reducing Fade
The standard shocks that come on your Jeep Wrangler JL or Jeep Gladiator JT are not going to cut it for extremely aggressive
off-roading, which makes the extra ground clearance from big tires worthless. Well, our friends over at Fox Shocks have a
solution for you with Fox 2.0 Performance Series IFP Shock Front for Wranglers and Gladiators with 2" to 3" of lift. This shock
is a leaps and bounds improvement over typical white-body shocks, and even performance shocks that are included in some lifts.
The Fox 2.0 features an internal IFP mono-tube reservoir design that separates shock oil from the high-pressure nitrogen.
2" Diameter Aluminum-Body Shock
The Fox 2.0 Performance Series IFP Shock Front bolt onto your Jeep Wrangler JL or Jeep Gladiator JT. The shock itself is 2" in
diameter with an aluminum body that improves cooling capability over the majority of steel-body shock on the market. Each shock
has a 5/8" chrome-hardened shaft and valving that's been finely tuned to offer your truck excellent off-road performance with
making your street ride too harsh. The shock mounts are made out of CNC machined billet aluminum and come standard with nitrile
rubber bushings that resist more deflection than stock, but are still extremely quiet.
Fitment:
Jeep Wrangler JL
Jeep Gladiator JT
Bilstein B8 5100 shock absorbers are designed as a direct fit solution for lifted trucks and SUV’s. These shock absorbers feature a monotube design which provides consistent fade free performance. B8 5100 shock absorbers utilize a unique, velocity sensitive, digressive piston which reacts to changing road conditions. All B8 5100 shock absorbers are tuned for each specific application to assure optimal performance is achieved. B8 5100 shock absorbers offer a significant improvement in ride quality, handling, and comfort.
Fox Performance Series 2.0 IFP Shock Rear 2-3in Lift Features:
2.0” Impact extruded and CNC machined 6061-T6 clear anodized aluminum one-piece body resists rust over time
Clear-anodized for a durable finish
Internal IFP mono-tube reservoir design
Black-anodized, CNC-machined 6061-T6 billet aluminum components
5/8" hard chrome plated heat-treated alloy steel shaft
Race-developed high-flow piston design
Application specific valving to maximize performance
Redundant sealing pack system main seal, wiper seal, scraper seal
Quiet nitrile rubber allows for increased suspension articulation
The Fox Performance Series 2.0 IFP Shock Rear 2-3in Lift Greatly Improves Suspension Performance while Dramatically Reducing Fade
The standard shocks that come on your Jeep Wrangler JK are not going to cut it for extremely aggressive off-roading, which makes the extra ground clearance from big tires worthless. Well, our friends over at Fox Shocks have a solution for you with Fox 2.0 Performance Series IFP Shock Front for Wranglers with 2" to 3" of lift. This shock is a leaps and bounds improvement over typical white-body shocks, and even performance shocks that are included in some lifts. The Fox 2.0 features an internal IFP mono-tube reservoir design that separates shock oil from the high-pressure nitrogen.
2" Diameter Aluminum-Body Shock
The Fox Performance Series 2.0 IFP Shock Rear 2-3in Lift bolts onto your Jeep Wrangler JK. The shock itself is 2" in diameter with an aluminum body that improves cooling capability over the majority of steel-body shock on the market. Each shock has a 5/8" chrome-hardened shaft and valving that's been finely tuned to offer your truck excellent off-road performance with making your street ride too harsh. The shock mounts are made out of CNC machined billet aluminum and come standard with nitrile rubber bushings that resist more deflection than stock, but are still extremely quiet.
Fitment: Jeep Wrangler JL
Bilstein B8 5100 shock absorbers are designed as a direct fit solution for lifted trucks and SUV’s. These shock absorbers feature a monotube design which provides consistent fade free performance. B8 5100 shock absorbers utilize a unique, velocity sensitive, digressive piston which reacts to changing road conditions. All B8 5100 shock absorbers are tuned for each specific application to assure optimal performance is achieved. B8 5100 shock absorbers offer a significant improvement in ride quality, handling, and comfort.
