Rough Country 66044 — 6 Inch Lift Kit | Long Arm | M1R | Jeep Wrangler Unlimited 4WD (2018-2023).

About this part

Unleash Maximum Articulation and Daily Comfort: Push your Jeep JL to the limit with Rough Country's 6-Inch Long Arm Suspension Lift Kit, engineered to dominate the trail without compromising daily drivability. This premium upgrade delivers superior axle flex and off-road articulation while maintaining smooth, stable highway handling, making it perfect for weekend warriors and weekday commuters alike. True 4-Link Design for Serious Off-Roaders: Built around a true 4-link long arm system, this kit ensures optimal suspension geometry and eliminates rear steer for better control and performance. The extended travel arms are crafted to prevent binding, allowing the suspension to flex freely over extreme terrain. No Welding. No Guesswork. Just Bolt and Go: Installation is straightforward, no welding or crossmember removal required. All components are designed for a direct bolt-on fit, saving time while ensuring precision and durability. The kit includes a heavy-duty CV front driveshaft built to handle extreme angles and articulation. Engineered for Strength, Built to Flex: Featuring a full set of adjustable upper and lower control arms front and rear, this kit allows fine-tuning of wheelbase and pinion angles. Each control arm is built from heavy-wall DOM tubing and features Rough Country's adjustable flex joints with rubber bushings for a quiet, durable ride. Dual Rate Coil Springs and Premium Shocks: Custom-tuned dual-rate coils offer excellent handling and a plush ride on or off-road, while the included N3 shock absorbers are valved for both comfort and control. Quick-disconnect sway bar links add even more articulation when you're ready to hit the trail. Rugged Construction Backed by Confidence: All mounting brackets are laser-cut from 1/4-inch thick high-tensile steel, built to withstand harsh trail conditions. Like all Rough Country suspension systems, this kit is backed by a Limited Lifetime Warranty, giving you long-term confidence with every adventure.

Manufacturer features

Superior On & Off-Road Performance: Engineered for incredible ride quality across any terrain. Bolt-On Installation: No welding required for a hassle-free upgrade. True 4-Link Suspension: Longer travel control arms eliminate rear steer and improve articulation. Binding-Free Articulation: Reduces suspension bind for smoother axle movement. Heavy-Duty Adjustable Track Bar: Forged solid steel construction delivers unmatched strength and durability. Dual Rate Coil Springs: Maintain ride quality and handling both on-road and off-road. Boosted Ground Clearance: Tackle rough terrain with greater confidence and clearance. Upgraded CV Front Driveshaft: Designed for long travel and durability under stress. Quick Disconnect Sway Bar Links: Easily transition from street to trail with added articulation. Customizable Shock Options: Available with premium N3-Series or M1R Monotube Shocks for superior off-road performance, handling, and ride comfort. Optimized Axle Flex: Maximizes suspension travel while maintaining ideal pinion angles.

Important application and installation requirements

Fits 4-door models ONLY . Due to variances in motor weight, this kit does NOT fit models equipped with a 3.0L EcoDiesel V6 motor. Due to variances in coil spring rate this kit NOT fit Rubicon models. Due to variances in coil spring rate this kit NOT fit 392 models. Due to variances in coil spring rate this kit NOT fit 4xe models.

Manufacturer-listed applications

2018-2023:4WD:Jeep:Wrangler JL Unlimited

Read the complete trim, drivetrain and installation restrictions. Application records are manufacturer supplied; they are not an independent fitment certification.

Manufacturer installation instructions

Manufacturer part number: 66044. Shipping weight: 342.50lbs. Supplier shipping classification: Ground Only.

Rough Country product specifications and restrictions

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