The Rock Krawler Suspension JT 4.5 inch Adventure X2 Long-Arm System is the ultimate in compromise between daily driver/hard core off-roader. The Adventure-X2 systems combine the benefits of a full high clearance 4 link front suspension with a high clearance independent 3 link rear suspension. Say goodbye to greasing your joints, our service free longarm system is here to stay. In every single control arm, we have our Adventure series joint center, which isolates harsh road vibrations equivalent to an OE bushing, includes high misalignment, and is fitted with a steel sleeve (that the bolt passes through) which rotates freely on a additional Teflon lined inner sleeve to insure that you are never chafing, twisting, or deforming the bushing material inside the housing as you blast through the mud, sand, sleet, salt, snow, dirt and dust.

To finish it off, as you tighten your control arms into the mounts, the sleeve of the joint is engineered to be the buffer between the clamping force of a bracket, which means that as you tighten everything, you are not compressing the bushing. This all makes for an incredibly long lasting joint that never requires a drop of grease, and makes zero noise inside the housing. This is where conventional on road handling meets bad ass off-road ability. With enhanced rear instant center(s) and rear roll center(s), X2 rear suspension geometry is the smoothest riding 3-Link suspension you can take down a trail or cruise across America in your Wrangler.

The new high clearance axle mounts provide 4.5” of ground clearance under the rear axle as compared to stock. The rear upper shock relocation brackets ensure you do not lose any shock or suspension travel. The combination of a full high clearance 4-link long arm front suspension and high clearance independent 3 link rear long arm suspension lets you dominate the streets and the trails. 

System Benefits:

Excellent highway ride and handling
Incredible off-road ability of all 3-Link Long Arm Systems
Improved rear roll center
Improved anti-dive
Tuned Triple Rate Coils
Spring Correction Seats front and rear to prolong the life of a coil.
Solid alloy steel control arms
Best Technical support in the industry
Jeep remains level on all 4 corners
Lifetime Warranty Coverage

Wheel / Tire Fitment:

Sport and Overland 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

Sport and Overland with Full OEM Fenders

37” Tall Tires (3” Bump Stop Height Recommended)

Sport and Overland 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 style" 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 Driveshaft, Tom Woods, J.E. Reel)
Requires welding of the Front and Rear Long Arm frame side mounts
Requires removal of the OEM frame side lower front control arm mounts
Requires removal of the OEM frame side front and rear upper control arm mounts
Requires removal of the OEM axle side track bar mount
Recommended to install limiting straps to avoid over extension of suspension components after vehicle is all set up.