• RC-78600U
  • RC-78600U
  • RC-78600U
  • RC-78600U
  • RC-78600U
1 5

Rough Country

Rough Country 78600U Long Arm Upgrade Kit | Jeep Wrangler JK/Wrangler Unlimited (2007-2018)

Rough Country 78600U Long Arm Upgrade Kit | Jeep Wrangler JK/Wrangler Unlimited (2007-2018)

PART #

$1,749.95
$1,749.95
SALE Backordered
Shipping calculated at checkout.

Inventory: Estimated Ship Date 06/12/2026
View full details

Important: Always read the entire product description, including Important Notes and Fitment information, before making a purchase. Components contained in images and descriptions may change based upon your selections.

Transform Your Suspension: Upgrade your Rough Country four or six-inch lift kit into a full-fledged, high-performance 4-link Long Arm setup for unparalleled capability and off-road confidence.Unmatched Flex and Clearance: Experience incredible axle articulation and impressive ground clearance without the hefty price tag of a completely new kit.Complete 4-Link Control: This upgrade includes a full set of front and rear upper and lower adjustable control arms, giving you precise control over wheelbase and pinion angle adjustments.Rugged Durability: Each control arm is crafted from heavy-wall DOM tubing and features Rough Country's adjustable flex joints with durable OEM-style rubber bushings, ensuring long-lasting flex and performance.Built for Strength: All brackets are fabricated from thick 1/4-inch high tensile strength plate steel for maximum durability and reliability under extreme conditions.Easy, No-Weld Installation: Designed for a faster, hassle-free install with no welding required and no need to remove the factory crossmember.Complete Installation Kit: Includes extended stainless steel brake lines and coil correction plates for a seamless and efficient upgrade process.Peace of Mind Guarantee: Backed by Rough Country's Lifetime Replacement Guarantee for confidence and lasting value.

Features

  • Exceptional articulation: delivers superior off-road flexibility and smooth axle movement on tough terrain.
  • No welding required: simplifies installation with a bolt-on design for quick, hassle-free setup.
  • True 4-link setup: features longer travel control arms engineered for maximum suspension performance.
  • Prevents binding and rear-steer: enhances stability by eliminating suspension bind and unwanted rear steering effects.
  • Coil correction plates: correct the rear coil spring angle by 10 degrees, improving spring efficiency and ride quality.
  • Unparalleled axle flex: allows maximum axle articulation while maintaining optimized pinion angles for driveline health.
  • X-flex control arms: feature oem-style rubber bushings, fully rebuildable flex joints, a massive 2.
  • 5" diameter body with 1.
  • 25" threads, and a fully greasable design for unbeatable durability and performance.

Brand Overview

Rough Country is a leading manufacturer and distributor of off-road accessories and suspension systems. Built on a foundation of American values and rooted in Tennessee, we use our expertise of trucks, Jeeps, and UTVs to help people drive their passions further— to conquer every road and trail, whether smooth or rugged, across the globe.