Chat with us, powered by LiveChat Rock Krawler 4.5" X-Factor X2 Long-Arm Suspension System for 07-18 Jeep Wrangler JK with RRD 2.625" RR Coilover Shocks for 07-18 Jeep Wrangler JK Unlimited 4-Door | Quadratec Skip to main content
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Rock Krawler JK45X2LA-4CS 4.5" X-Factor X2 Long-Arm Suspension System with RRD 2.625" RR Coilover Shocks for 07-18 Jeep Wrangler JK Unlimited 4-Door

Starting at
$5,160.95
Description

Exceptional Geometry & Ride Quality: The long-arm design minimizes "caster change" and axle wrap during acceleration and braking. This creates a much smoother ride and more predictable steering compared to standard short-arm lifts at this height.

Massive Articulation: Designed for maximum "flex," the X-Factor X2 allows the axles to drop and compress further, keeping your tires in contact with the ground on uneven terrain for superior traction.

Abuse-Proof Durability: Rock Krawler uses solid steel for their control arms, backed by an "Abuse-Proof" lifetime warranty on all bent alloy steel components. These arms are designed to take direct hits from rocks that would buckle factory equipment.

Adventure Series Joints: These specialized joints offer massive amounts of misalignment (flex) while remaining greaseable and rebuildable. They are designed to be quiet for daily driving while providing the range of motion needed for expert-level trails.

High-Clearance Engineering: Every component, from the track bars to the control arms, is shaped to provide maximum ground clearance. This ensures that the suspension components themselves aren't the things getting hung up on obstacles.

Many states have laws that limit the maximum height of a lifted vehicle. Never exceed the legal height limit.

Details

The Rock Krawler 4.5" X-Factor X2 Long-Arm Suspension System is engineered for Jeep Wrangler JK owners who demand the ultimate in off-road articulation without sacrificing high-speed stability. By transitioning from a short-arm to a long-arm configuration, this system drastically improves the suspension’s geometry, flattening the control arm angles to reduce the harshness typically associated with tall lifts. This results in a "planted" feel, whether you are crawling through technical rock gardens or commuting on the highway, as the longer arms allow the axles to move more naturally through their travel arc.

Constructed from heavy-duty, solid steel, the X-Factor X2 is built to endure extreme environments and the weight of 37-inch to 40-inch tires. This system doesn't just provide height; it provides a comprehensive handling overhaul. With adjustable high-clearance components and the maintenance-free Adventure Series joints, you get a quiet, vibration-isolated ride that retains the rugged durability Rock Krawler is known for.

Parts Included
  • (2) Front Frame Side Weld-on Long-arm Mount
  • (2) Heat Shield Products Thermal Barrier
  • (1) Top Mount PRO-X Drag Link
  • (1) 1/4” Thick Laser Cut Steel Cross Member
  • (2) Front High Clearance Adjustable Lower Control Arm
  • (1) Front Axle Side Weld-on Control Arm Bracket
  • (1) Front Adjustable Upper Control Arm
  • (1) Front Adjustable Anti-wobble Track Bar
  • (1) Front Sway Bar Disconnect Kit
  • (4) Front/Rear Triple-rate Coil Spring
  • (2) Rear Frame Side Weld-on Lower Control Arm Mount
  • (2) Rear High Clearance Adjustable Lower Control Arm
  • (1) Rear Double Adjustable Upper Control Arm
  • (1) Rear Adjustable Anti-wobble Track Bar
  • (1) Rear Weld-on Dual Sport Track Bar Bracket
  • (1) Rear Weld-on Axle Truss
  • (2) Rear Frame Side Weld-on Lower Control Arm Mount
  • (2) Rear frame Side Weld-on Shock Mount
  • (2) Rear Axle Side High Clearance Control Arm/Shock/Sway Bar Link Mount
  • (2) Front/Rear Extended Brake line Kit
Warranty
Lifetime Warranty.
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    • Jeep Wrangler 2-Door (JK)

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    • 2015 Jeep Wrangler Unlimited 4-Door (JK)
    • 2014 Jeep Wrangler Unlimited 4-Door (JK)
    • 2013 Jeep Wrangler Unlimited 4-Door (JK)
    • 2012 Jeep Wrangler Unlimited 4-Door (JK)
    • 2011 Jeep Wrangler Unlimited 4-Door (JK)
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    Rock Krawler 4.5" X-Factor X2 Long-Arm Suspension System Options

    Part NumberCatalog #Model OptionsShock OptionsPrice
    16189-48672-Door JKwithout Shock$5,160.95
    16189-48682-Door JKwith RRD 2.25" IFP Shocks$6,422.41
    16189-48692-Door JKwith RRD 2.625" RR Coilover Shocks$9,576.04
    16189-48734-Door JKwith RRD 2.25" IFP Shocks$6,479.41
    16189-48744-Door JKwith RRD 2.625" RR Coilover Shocks$9,293.24
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