Rough Country 66640 — 2.5 Inch Lift Kit | Coils | M1 | Jeep Wrangler Unlimited 4WD (2018-2023).

About this part

Put the finishing touch on your Jeep Wrangler JL with Rough Country's 2.5-Inch Suspension Lift Kit, designed for the 4-door model and offering enough clearance to easily run 35-inch tires. This kit is your ticket to taking your JL to new heights with a rugged, trail-ready stance. Level Up Your Ride: Eliminate the factory nose-dive and achieve a sleek, leveled appearance. This lift kit levels the front with the rear, giving your Jeep a commanding, off-road-ready profile. Improved Off-Roading Performance: Gain the extra ground clearance you need to tackle tough trails with confidence. Optimized approach, breakover, and departure angles keep your JL performing in challenging terrain. Ride Improvement: Linear coil rate springs enhance handling and load support, improving your Jeep's ride both on and off the trail. Custom Shock Options: Configure your lift with your choice of nitrogen-charged N3 shocks, V2, M1 Monotube, or premium M1R shocks to perfectly match your driving style, from daily comfort to serious off-road performance. Additional Tire Clearance: This kit clears up to 35-inch tires, giving your Jeep a bold, aggressive look that turns heads wherever the adventure takes you. Easy Bolt-On Installation: A simple, 100% bolt-on design means no complicated modifications, so you can hit the trails faster and enjoy your new stance with confidence.

Manufacturer features

Hassle-Free Installation: Features a 100% bolt-on design with no cutting or welding required for a smooth, DIY-friendly setup. Front-to-Rear Leveling: Eliminates factory rake by bringing the front end in line with the rear for a clean, leveled stance. Enhanced Ground Clearance: Gain extra ride height to better tackle obstacles and uneven terrain with confidence. Factory-Tuned Coil Springs: Engineered to match OEM spring rates, maintaining factory ride quality while supporting the lift. Tire Clearance up to 35 Inches: Run larger tires for an aggressive look and improved off-road capability. Custom Shock Options: Select from nitrogen-charged N3 shocks, V2, M1 Monotube, or premium M1R shocks for a ride tailored to your off-road needs and preferences.

Important application and installation requirements

Fits 4-door models ONLY . To ensure proper fitment, please select whether your vehicle is a Rubicon or non-Rubicon using the dropdown above, as coil spring rates vary between models. 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 392 models. Due to variances in coil spring rate this kit NOT fit 4xe models. 35" tires will clear, but rubbing may occur with extreme articulation. If planning on running 35" tires on factory wheels, double-check clearance between the front tire, lower control arm, and sway-bar links.

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: 66640. Shipping weight: 86.00lbs. Supplier shipping classification: Ground Only.

Rough Country product specifications and restrictions

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