Rough Country - 4 Inch Lift Kit - X-Series - M1 - Jeep Wrangler TJ (97-06)/Wrangler Unlimited (04-06) - 66140

Total Transformation, On and Off the Trail: Give your Jeep TJ the ultimate upgrade with Rough Country's 4in X-Series Suspension Lift Kit. This all-inclusive package delivers everything you need for aggressive styling, increased ground clearance, and enhanced off-road capability. Precision Adjustable Control Arms: This kit includes front and rear upper and lower X-Flex Control Arms featuring a high-clearance design. Built with OEM-style rubber bushings, fully rebuildable flex joints, and massive 2.5" diameter bodies with 1.25" threads, these control arms are fully greaseable for long-lasting durability and superior articulation. Fine-tune your ride height and suspension geometry with ease. Optimized Suspension Geometry: Lifted coil springs provide the perfect combination of ride height and vibration dampening, delivering optimal suspension performance across any terrain. This kit also includes durable stainless steel brake lines for improved reliability and safety. Heavy-Duty Forged Adjustable Track Bar: When it comes to strength and stability, the forged solid steel Adjustable Front Track Bar delivers. Weighing a robust 16 pounds, this track bar outmatches stock components, ensuring precise axle alignment and control even during extreme off-road flexing.

Features & Benefits

• Easy Bolt-On Installation: Simple, no-cutting-required setup for a quick, hassle-free upgrade.
• Increased Ground Clearance: Gain extra ride height to tackle off-road obstacles with confidence.
• Front-to-Rear Level Stance: Levels the front of your vehicle with the rear for a balanced, aggressive profile.
• Heavy-Duty Adjustable Front Track Bar: Constructed from forged solid steel for unmatched strength, durability, and precise axle alignment.
• Convenient Quick Disconnects: Easily remove and secure the quick disconnects out of the way when not in use, giving you a clean, hassle-free setup on the trail or street.
• X-Flex Control Arms: Built for extreme flex with OEM-style rubber bushings, fully rebuildable flex joints, a massive 2.5" diameter body with 1.25" threads, and a fully greaseable design for maximum durability and articulation.
• Custom Shock Options: Choose from nitrogen-charged N3 shocks, V2 performance shocks, or M1 monotube shocks to tailor your ride for on-road comfort or rugged off-road handling.

Notes

• Transfer case drop kit or Slip Yoke Eliminator with CV Drive Shaft is recommended to avoid driveline vibration. View CV Drive Shafts here. Rubicon models do NOT need a SYE kit or transfer case drop, but a CV Drive Shaft is still recommended.

📄 Installation Instructions (PDF)