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Rock Krawler 4.5in Adventure X Mid-Arm Suspension System - Bilstein Shocks - JL 4DR

Suspension
Lift Kits
4-5in Lifts >Rock Krawler 4.5in Adventure X Mid-Arm Suspension System - Bilstein Shocks - JL 4DR

Rock Krawler 4.5in Adventure X Mid-Arm Suspension System - Bilstein Shocks

JL 4DR

INCLUDED IN PRICE

Front Coil Springs $236.55

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

Out of stockProduct will ship from manufacturer, average time to ship: 7-10 business days
Shocks $440.00

1 x Rock Krawler 3.5/4.5in Bilstein 5100 Shocks - JL
RKKRRD04052-B51

Out of stockProduct will ship from manufacturer, average time to ship: 7-10 business days
Box Kit $430.42

1 x Rock Krawler X Series Box Kit - JL
RKKRK06776

In stock!
Bump Stop Kit $216.42

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

In stock!
Rear Upper Control Arms $318.93

1 x Rock Krawler Adventure Series Rear Upper Control Arms - JL/JK
RKKRK07850

In stock!
Front Lower Control Arms $450.30

1 x Rock Krawler Adventure X Series Front Lower Control Arms - JL/JT
RKKRK08194

Out of stockProduct will ship from manufacturer, average time to ship: 7-10 business days
Front Upper Control Arms $289.75

1 x Rock Krawler Adventure Series Front Upper Control Arms - JT/JL
RKKRK07848

Out of stockProduct will ship from manufacturer, average time to ship: 7-10 business days
Front Track Bar $251.51

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

In stock!
Rear Coil Springs $236.55

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

In stock!
Rear Lower Control Arms $429.91

1 x Rock Krawler Adventure X Series Rear Lower Control Arms - JL/JK
RKKRK08195

Only 1 left!

$3,300.34

NEW

(Price as configured)

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Part # JL45AXM-4B51

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Installation Instructions

Fitment Details

Features & Product Details

The Rock Krawler 4.5" 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. This system proves its durability and off-road performance every time you hit the streets or trail! The Term, Adventure - X, comes from the inclusion of 8 adjustable control arms with Rock Krawler's 100% Service Free Adventure Series joints installed. The 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 the Adventure series Joints at the frame connection and at the axle. The inherent bind in a factory JLU control arm is greatly reduced. With so much adjustability, it allows you to precision tune the JLU's caster and pinion angle front and rear.

Driving you home with the most comfortable ride possible in a Wrangler, are the 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 JLU 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, let you perfectly center the axles so there is no compromise in on road handling. When Rock Krawler designs a system, their goal is to provide you with the most comprehensive solution and the best geometry, install exceptional value, and be the foundation for every adventure whether it be on the Street, In tow, or down a Trail! Thank you for considering Rock Krawler Suspension.

Note: Does NOT fit Diesel. Gas models only

System Benefits:

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 Long-arm System

Best Technical Support in the Industry

Jeep Remains Level on All 4 Corners

System Includes:

(4) Triple-rate Coil Springs

(1) Gen-II Front Sway Bar Kit

(2) Front Adjustable Lower Control Arms

(2) Rear Adjustable Lower Control Arms

(2) Front Adjustable Lower Control Arms

(2) Rear Adjustable Lower Control Arms

(2) Front Spring Pads

(1) Adjustable Front Track Bar

(2) Rear Spring Pads

(2) Set-length Rear Sway Bar Links

(1) Bolt-on Rear Track Bar Relocation Bracket

Bump Stops Are Included with All Shock Options

Shock Information:

All RRD Shocks and Coilovers are Designed and Built in-house

Generic Front Shock Length – 18.31” Collapsed/ 30.31” Maximum Extended

Generic Rear Shock Length – 19” Collapsed/ 31” Maximum Extended

Bilstein 5100 Shocks:

A Great Pairing with the Multi-rate Coil Springs

Maintenance Free

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 Full OEM Fenders: 37”/38” Tall Tires (3” Bump Stop Height Recommended)

Rubicon OEM Fenders Trimmed or High Lined: 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).

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

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 Driveshaft, Tom Woods, J.E. Reel)