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★★★★★ 4.9 (625 Google reviews) · Marietta shop · 📞 (678) 400-6467 · 🗺️ Get Directions · Live From The Shop
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Rough Country · Authorized Dealer

Long Arm Upgrade Kit | Jeep Wrangler Jk/wrangler Unlimited (2007-2018)

Part #: 78600UUPC: 843030154929Brand: Rough Country

$1,749.95

Price does not include installation.

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*Estimated lease-to-own payment. Final approval and terms are determined by the lender. See all financing options →

🛠️ Install available in Marietta, GA

Installed and serviced at Road Runner Wheels & Tires — 1585 Roswell Rd, Marietta, GA 30062. Call (678) 400-6467 to schedule.

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Built for Jeep Wrangler JK owners who demand maximum articulation and off-road control, this Long Arm Upgrade Kit transforms your Rough Country four or six-inch lift into a full-performance 4-link suspension system. Longer control arms deliver superior axle flex, eliminate binding and rear-steer, and preserve driveline geometry — all with a bolt-on design and no welding required.

Installed and serviced at Road Runner Wheels & Tires. Most lift kits go in the same day. Call (678) 400-6467 to schedule.

What's included

  • Front upper and lower adjustable control arms with flex joints — engineered with OEM-style rubber bushings, fully rebuildable flex joints, and 2.5" diameter heavy-wall DOM tubing for maximum articulation and durability.
  • Rear upper and lower adjustable control arms with flex joints — same rugged construction as fronts, allowing precise wheelbase and pinion angle adjustments.
  • Coil correction plates — correct the rear coil spring angle by 10 degrees to improve spring efficiency and overall ride quality.
  • Track bar drop bracket — repositions the track bar to maintain proper geometry and stability during extreme articulation.
  • Extended sway-bar links and quick-disconnect mounts — allow sway bar disconnect for off-road flex while maintaining on-road control.
  • Frame strengthening brackets — fabricated from 1/4-inch high tensile strength plate steel for uncompromising durability under extreme conditions.
  • Stainless steel braided brake lines — front and rear lines included to accommodate suspension geometry changes and ensure brake safety.
  • Exhaust spacer and complete hardware kit — everything needed for a seamless, no-weld bolt-on installation.

Important notes

  • This upgrade is ONLY for models equipped with a 4–6" suspension lift — it is not compatible with factory suspension or smaller lift heights.
  • An upgraded front and rear driveshaft is highly recommended to handle the increased articulation and preserve driveline health.
  • Alignment and pinion-angle verification are performed in-house as part of the installation to ensure corrected geometry and optimal driveline performance.

Why customers pick this at Road Runner

  • Rough Country Lifetime Replacement Guarantee backed by local service and support — your investment is protected for life.
  • Professionally installed by technicians who perform these upgrades every week and dial in geometry to your exact setup.
  • Alignment and driveline angle correction performed in-house after installation — no trips to a third-party shop.
  • Bolt-on design eliminates welding, reduces install time, and keeps your frame unmodified.

Ready to build it? Call (678) 400-6467. Hablamos Español.

QtyPartPart #
1Long Arm Universal Kit Box | Jeep Wrangler JK (07-18)785BOX1
1Long Arm Universal FR Kit Box | Jeep Wrangler JK (07-18)785BOX2
1Long Arm Universal RR Kit Box | Jeep Wrangler JK (07-18)785BOX3
1Long Arm Exhaust Box | Jeep Wrangler JK (07-18)785BOX4

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.
YearsMakeModelDrive
2007-2010JeepWrangler Unlimited SaharaRWD
2007-2010JeepWrangler Unlimited X4WD
2007-2010JeepWrangler Unlimited XRWD
2007-2010JeepWrangler X4WD
2007-2017JeepWrangler Rubicon4WD
2007-2017JeepWrangler Sahara4WD
2007-2017JeepWrangler Unlimited Rubicon4WD
2007-2017JeepWrangler Unlimited Sahara4WD
2010JeepWrangler Unlimited SportRWD
2010-2017JeepWrangler Sport4WD
2010-2017JeepWrangler Unlimited Sport4WD
2011JeepWrangler 70th Anniversary4WD
2011JeepWrangler Unlimited 70th Anniversary4WD
2016JeepWrangler 75th Anniversary4WD
2016JeepWrangler Sport S4WD
2016JeepWrangler Unlimited 75th Anniversary4WD
2016JeepWrangler Unlimited Sport S4WD
  • Install time: 8-10 hours
An upgraded front and rear drive shaft is HIGHLY recommended. ONLY for models equipped with a 4-6" suspension lift.

Rough Country Lifetime Replacement Warranty covers all structural components against defects in materials and workmanship for the original purchaser's lifetime ownership of the vehicle.

3-Year Finish Warranty on all painted and powder-coated surfaces.

3-Year Shock Warranty on N3, M1, and Vertex shocks against leakage and structural failure.

Warranty service is handled by Rough Country directly — call (678) 400-6467 if you need help opening a warranty claim and we'll walk you through it.