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Rock Krawler 4.5in RRD 2.625in FCD Rear Coilover Upgrade - JK 4DR

Suspension
Shocks
Coilover Kits >Rock Krawler 4.5in RRD 2.625in FCD Rear Coilover Upgrade - JK 4DR

Rock Krawler 4.5in RRD 2.625in FCD Rear Coilover Upgrade

JK 4DR

Rock Krawler 4.5in RRD 2.625in FCD Rear Coilover Upgrade - JK 4DR

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Part # JK45COR-4FCD

$3,322.65

msrp: $3,497.53

Quantity

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

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Rock Krawler

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Dealer

Product Resources

Fitment Details

Features & Product Details

Take your Jeep Wrangler JKU to the next level with the Rock Krawler 2.625" RRD Rear Coilover Upgrade. This system allows you to install rear coilovers without body or tub cutting, delivering a true high-performance suspension setup while keeping your vehicle functionally a Jeep. The included coilover mounts are frenched into the frame, providing a strong, mounting solution that preserves structural integrity while maximizing suspension travel and articulation. The result is a dramatic improvement in ride quality and overall off-road capability.

Shock Key Features:

2.625” O.D. Military Grade Hard Anodized Fluted Aluminum Shock Body

Massive 3.25” O.D. Military Grade Hard Anodized Fluted Aluminum Reservoir Body w/ Internal Floating Piston Charged with Argon

Cooling Surface Area of a 3.0” Shock

1” 17-4 PH Stainless Steel, Hard Chrome Plated and Polished Shaft

Military Grade Hard Anodized Billet Aluminum Valve Circuit and Billet Machined Components

Dual DU Shaft Bearings and Double Redundant Sealing Methods

Dual Spring Rate Slider

Adjustable Spring Lockout Collars (Transition Rings)

Serviceable/Rebuildable/Revalveable

Optional Upgrade: Fast Compression Damping (FCD): On-the-fly adjustability with up to 30% increased compression control

What’s Included:

(2) Rear Coilovers

(2) Frame Side Coilover Mounts

(2) Axle Side Coilover Mounts

Compatibility:

Valid for 4.5" of Lift w/ 72 WMS Axle and 3.5" BS Wheel or Functional Equivalent For Jeep JKU

For Different Powertrain Options Give Us a Call

Notes:

Requires removal of OEM rear frame side shock brackets.

Requires removal of OEM rear axle side shock brackets.

Requires welding of the coilover mounts and brackets.

Recommend installation of limiting straps to avoid over extension of suspension components.

Why Argon for charging our shocks? Argon has a molecular size that is almost 3 times that of Nitrogen so it does not weep as fast so recharging is not as frequently required, but yet Argon is still readily available at most commercial gas suppliers.

For custom valved applications please contact us directly.

Coilover Collapsed length 21.31" - Extended Length 34.31"

Argon-charged (100 PSI at full extension) for improved gas retention vs. nitrogen

RRD 2.625" FCD Coilover Details

Product Resources

Fitment Details

Specifications

Brand: Rock Krawler

Lift: 4.5in

Location: Rear

QTY: 1 Kit

Mfgr. Warranty: Limited Lifetime

Condition: New Product

Return Policy:

Standard

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