4in Jeep Long Arm Suspension Lift Kit (07-18 Wrangler JK | 4-door)

As low as $1,999.95
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FAQ
SKU
78630-config
Brand
Rough Country
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Achieve the ultimate flex and articulation while retaining a smooth highway ride quality with Rough Country's 4in Long Arm Suspension Lift Kit. This true 4-link setup offers incredible off-road performance while keeping the suspension geometry as close to the factory angles as possible. The result is a more capable suspension setup that can deliver jaw-dropping rock crawling performance while still giving the soft, lush highway ride quality a daily driver would enjoy.

Overview

Achieve the ultimate flex and articulation while retaining a smooth highway ride quality with Rough Country's 4in Long Arm Suspension Lift Kit. This true 4-link setup offers incredible off-road performance while keeping the suspension geometry as close to the factory angles as possible. The result is a more capable suspension setup that can deliver jaw-dropping rock crawling performance while still giving the soft, lush highway ride quality a daily driver would enjoy.

Rough Country’s 4in Long Arm Suspension Lift features custom engineered dual-rate coils that provide two distinctly different levels of compression allowing you to tackle any obstacle with ease. Each kit includes a full set of Rough Country’s Nitrogen-charged N3 shocks, designed to offer the maximum possible travel while providing a lush ride.

The 4-link setup includes a full set of front and rear upper and lower adjustable control arms giving you full control to adjust the wheelbase and pinion angle. Each arm features Rough Country’s adjustable flex joints with Clevite rubber bushings and is constructed out of durable heavy-wall DOM tubing for a long lifespan of flex and performance. All brackets are made of a thick 1/4in thick high tensile strength plate steel.

Rough Country’s 4in kit boasts an easier install process than most long arm kits, with no welding and no removal of the factory crossmember required for installation. The kit also includes extended stainless steel brake lines and coil correction plates making it that much faster and easier to install. Includes a Lifetime Replacement Guarantee!
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Features

  • Incredible on and off-road ride quality
  • No welding required
  • True 4-link setup with new, longer travel arms
  • Prevents binding and rear-steer
  • Front adjustable track bar is made of forged solid steel for unsurpassed strength and durability
  • Includes our premium N3 shock absorbers
  • Coil correction plates correct the rear coil spring angle by 10 degrees, allowing them to function more effeciently.
  • Gain unparalelled axle flex while keeping pinion angles optimized
  • X-Flex control arm features:
    • Clevite brand OEM style rubber bushings.
    • Flex joints are fully rebuildable.
    • Flex joints feature a massive 2.5" diameter body and 1.25" thread.
    • Fully greasable.

Notes - Important

  • Does NOT fit 2-door models.

Specs

More Information
Est. Install Time10-12 hours
Recommended Tire Size35x12.50 R17
Recommended Wheel Backspacing4.5" - 4.75"

In the Box

Front
  • Lifted dual-rate coil springs
  • Upper adjustable control arms with flex joints
  • Lower adjustable control arms with flex joints<
  • Exhaust spacer
  • Frame strenghening brackets
  • Sway-bar quick disconnects
  • Forged adjustable track bar
  • Stainless steel braided brake lines
  • Hardware
Rear
  • Lifted dual-rate coil springs
  • Upper adjustable control arms with flex joints<
  • Lower adjustable control arms with flex joints<
  • Coil correction plates
  • Track bar drop bracket
  • Extended sway-bar links
  • Stainless steel braided brake lines
  • Hardware
Shocks
  • (4) Premium N3 shocks

Instructions

Vehicle Fitment

YearsDriveMakeModel
2007-2018 2WD/4WD Jeep Wrangler JK Unlimited
ALWAYS read all product page details for more important fitment information

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