Front Coil Springs $236.55

1 x Rock Krawler 4.5in Front Coil Springs - JL
RKKRK07018P

Product will ship from manufacturer, average time to ship: 7-10 business days
Rear Coil Springs $236.55

1 x Rock Krawler 4.5in Rear Coil Spring - JL
RKKRK07019P

In stock!
Front Track Bar $251.51

1 x Rock Krawler Front HD Adjustable Track Bar - JT/JL
RKKRK06187HD

In stock!
Lower Long Arms $358.14

2x Rock Krawler Lower Long Control Arm - JT/JL
RKKRK07145B

In stock!
Front Upper Arms $311.30

1 x Rock Krawler X Factor Front Upper Long Control Arms - JL
RKKRK07342

Only 2 left!
Front Long Arm Box Kit $620.79

1 x Rock Krawler X Factor Front Long Arm Mounts - Box Kit - JL
RKKRK07376

Only 2 left!
Rear Axle Mounts Box Kit $338.90

1 x Rock Krawler Box Kit - Rear Axle Mounts - JL w/ Dana 44 Rear Axle
RKKRK07371

In stock!
3 Link Rear Box Kit $555.31

1 x Rock Krawler Box Kit - 3 Link Rear - JL w/ Dana 44 Rear Axle
RKKRK07373

In stock!
Rear Long Arm Mounts Box Kit $227.65

1 x Rock Krawler Box Kit - X Factor Rear Long Arm Mounts - JL
RKKRK07375

In stock!
Rear Track Bar $229.51

1 x Rock Krawler Adjustable Rear Track Bar - JL
RKKRK06692B

In stock!
Lower Long Arms $656.56

2x Rock Krawler Lower Long Arm - JL
RKKRK07337B

In stock!
Component Box Kit $718.76

1 x Rock Krawler Box Kit for Adventure X Factor No Limits Long Arm Lift Kits - JL
RKKRK07378

Only 1 left!
Bump Stop Kit $216.42

1 x Rock Krawler Front and Rear 2-4in Bump Stop Kit - JL
RKKRK07124

In stock!
Shocks $1,045.00

1 x Rock Krawler 4.5in 2.25 RRD Shock Kit - JL
RKKRRD02309

In stock!

$6,002.95

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Part # JL45X2NL-2S1

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Fitment Details

Features & Product Details

The Rock Krawler JL 4.5 X Factor System is the ultimate JL Long Arm system for hard core rock crawling. The Rock Krawler No Limits systems feature our No limits front sway bar links that allow Rubicon owners to utilize the factory Rubicon sway bar disconnect feature and still achieve full articulation. The X Factor systems feature Independent 3 link designs front & rear for maximum articulation and off-road performance.

The rear suspension provides adjustable anti-squat with X2 rear suspension geometry with enhanced rear instant center(s) and rear roll center(s). 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 high clearance mounting and 3 link suspension geometry lets you dominate the trails.

System Benefits

Excellent Highway Ride

Improved Off-Road Ability

Full High Clearance Design

2.25 RRD Shocks Front & Rear

Independent 3 Link Long Arm Front Suspension

Independent 3 Link Long Arm Rear Suspension

Weld on Long Arm Mounting Brackets with Weld Scheduling just like OEM

Heat Shield thermal barrier products, just like OEM to protect the front control arm joints at the frame

4.5” Rear Clearance Gain from the X2 Axle Bracket System

Adjustable Rear Anti-Squat Featuring X2 Geometry

Tire Fitment:

Sport and Sahara with Full OEM Fenders

38” Tall Tires (4” Bump Stop Height Recommended)

Sport and Sahara with Trimmed or High Lined OEM Fenders

40” Tall Tires (4” Bump Stop Height Recommended)

Rubicon with Full OEM Fenders

39/40” Tall Tires (4” Bump Stop Height Recommended)

Rubicon with Trimmed or High Lined OEM Fenders

42” Tall Tires (4” Bump Stop Height Recommended)

Wheel Fitment:

Sport and Sahara Wheel Fitment Recommendations

38” Tall Tires – Recommend 3.5” of Backspacing

Rubicon Fitment Recommendations

39” Tall Tires – Recommend 4.0” of Backspacing

42” Tall Tires – Recommend 3.5” of Backspacing

Shock Notes:

Generic Front Shock Length – 18–19” Collapsed/ 31” Maximum Extended

Generic Rear Shock Length – 19” Collapsed/ 32” Maximum Extended

General Notes:

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

*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 Sport Models.

*Requires a gas tank conversion either to a JK Gas Tank or any aftermarket gas tank the mounts in the rear or bed of the vehicle.

*Requires the use of an Aftermarket Front Axle Housing with FAD Delete to Weld the Front Upper Arm Mount to.

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

*Requires welding of the Front and Rear Long Arm Mounts.

*Requires removal of the OEM frame side lower front and rear control arm mounts.

*Requires removal of the OEM frame side front and rear upper 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.