Rock Krawler 4.5in T-Rex No Limits Long Arm System Lift Kit

The Rock Krawler JL 4.5 T-Rex Systems are for those JL 2 Door Owners looking to get the best off road ability without modifying the fuel system. It features a X Factor mid arm front suspension system combined with a X Factor long arm rear system. The rear system provides the tried and true independent 3 link conversion with X2 rear suspension geometry.

New high clearance axle mounts provide 4.5 inches of ground clearance under the rear axle as compared to stock. Rear upper shock relocation brackets ensure you do not lose any shock travel. The combination of high clearance mid arm front suspension and high clearance rear long arm suspension makes your 2 Door JL tough to beat on the trails. And if the day ever comes where you want to modify the fuel system and go full long arm suspension, you have that option.

System Benefits:

Lift Height:
All lift heights are based on stock Rubicon models
Sahara add .393" of lift over stock configuration
Sport add .787" of lift over stock configuration

Tire Fitment:
Sport and Sahara with Full OEM Fenders
38in Tall Tires (4in Bump Stop Height Recommended)
Sport and Sahara with Trimmed or High Lined OEM Fenders
40in Tall Tires (4in Bump Stop Height Recommended)
Rubicon with Full OEM Fenders
39in/40in Tall Tires (4in Bump Stop Height Recommended)
Rubicon with Trimmed or High Lined OEM Fenders
42in Tall Tires (4in Bump Stop Height Recommended)

Wheel Fitment:
Sport and Sahara Wheel Fitment Recommendations
38in Tall Tires - Recommend 3.5in of Backspacing
Rubicon Fitment Recommendations
39in Tall Tires Ð Recommend 4.0in of Backspacing
42in Tall Tires Ð Recommend 3.5in of Backspacing

General Notes:

*Requires the use of Steersmarts XD Yeti HD Bottom Mount Drag Link for Off-Road Use

*XR Package does not require OUR raised rear track bar bracket, the factory axle has a raised rear trackbar bracket, and for OUR systems that do not have a rear trackbar one must be added.

*All lift heights based on Rubicon Models For 2 Doors

*If building with a spare delete, we recommend dropping 1” in coil lift height for the rear.

*If building an overland or heavily upfitted build in the back, we recommend upsizing 1” in coil lift height for the rear.

*Requires aftermarket fuel tank or relocation of factory fuel tank.

*Recommend a new front C.V. driveshaft for all front shocks with max. extended length greater than 29”

*Requires welding of the Rear Long Arm Mounts

*Requires removal of the OEM frame rear control arm mounts

*Requires removal of the OEM axle side rear lower control arm and track bar mounts

*Requires modifying the OEM rear shock mounts and welding of the raised rear upper shock mounts

*Recommend installing limiting straps to avoid over extension of suspension components after vehicle is all set up